Not my home studio but I frequently visit using the passport F45 feature - love coming to work out…read morehere when away from my home studio! Deion is an amazing coach and his energy and positivity radiates off of him. It's the perfect welcome to start my day pre-sunrise. Space, equipment, and bathrooms are all clean. Members are friendly and courteous! Plenty of parking.

I believe this F45 Irvine location was recently renovated earlier this year, and it definitely…read moreshows. The space feels clean, refreshed, and really nice to work out in. I love that they offer plenty of class times throughout the day. The trainers here are awesome. They're always friendly, inviting, and quick to help correct your form in a supportive way. You can tell they genuinely care about helping members get better. Please keep it up! Parking is also a big plus here since it's located in Sky Park, and there are plenty of spots available right outside.

Such a great studio! The vibes are amazing and the workouts are always different, which keeps it…read morefun and challenging. I love that I never know exactly what to expect -- it makes showing up exciting. Coaches are motivating and the community feels super supportive. Definitely recommend!

The gym that I used to go to close down, so I was looking for a new gym that offers HIIT workouts…read more I tried this studio and a few more others with my ClassPass membership to figure out where I wanna go permanently and I feel like I found my new gym. The workouts are great with a great balance of resistance training and interval training. The trainers are awesome and Alyssa, which I usually see is such a fun and energetic coach who makes the classes very fun. This gym has the right equipment and very well put together and organized. The studio has an identity/personality which I feel like a lot of studios lack. After about four sessions, I got a membership with them and happy with my decision. I highly recommend WORK Training Studios to whomever enjoys HITT workouts.

I've been going to 3D Fitness 4-5x/week for the past three years -- including all the way through…read moremy first pregnancy -- and it's easily one of the best decisions I've made. The workouts are strong, but that's not the differentiator. The community is. You see the same people consistently, and over time it becomes a tight, supportive group. It's rare to find a gym where you actually look forward to who's going to be there, not just what's programmed. Programming is thoughtful and well-balanced -- strength + high-intensity cardio -- and it never gets stale. Chris (owner/instructor) is especially good at reading people and pushing you just past where you think your limit is. You end up doing more than you expected, regularly. There's also real connection beyond the floor. They organize occasional events -- I recently did a cooking class with ~20 women from the gym -- and it adds another layer to the experience. I've always been active, but this is the first time in 20+ years I've been this consistent. That's not accidental -- it's because of the environment. If you want a place that will push you, keep you accountable, and make you want to show up, this is it.

Love coming here! Been coming since September 2025, and it's exceeded all expectations for this 50+…read moreyear old who's never been able to commit to a gym (and wasted so much in membership fees!) in her life. Owners Chris and Nancy are so welcoming, professional, and reliable. Plus super clean. Hours are perfect for working peeps. Vibe is friendly and chill. Chris designs the workout with such variety every session, it never gets boring. And so satisfying to see my progress over time, helps me feel good knowing I'm doing something really important for my health. Did a Mud Run in Irvine last weekend with my 26 year old daughter who got tired before I did. Highly highly recommend this gym to anyone who wants to get healthier and aims to stay that way.

Amazing workout. Fantastic gym. Excellent trainers. And a wonderful sense of community. A special…read morecall out to trainer Katie Savage. She is a true trainer and I appreciate that. Not a dancer, not a cheerleader, not a squealer, but a trainer and a motivator. Thank you,Katie!

The gym experience was alrighty but the owner is out of control. He audibly yells and insults his…read moreemployees in front of members. I don't know how he thinks he can run a business like that. I feel bad for his employees I would hate to work there. Josh needs to get himself in check or check into anger management.

This gym has it all, the vibes, awesome trainers, intelligently programmed classes and most of all,…read morereally kind people who belong to and work at this gym. Everyone here is respectful and is focusing on their health, which allows for such a safe place to be. The classes are top notch and having two coaches in a class really does make a difference. It's really the only place where they actually correct your form and sometimes they make the exercises harder so you're getting the most out of every workout. I've been her for about two months and haven't had a mediocre experience yet, it's ALWAYS a great class! I've been to most of the popular studios (Nike, OTF, F45, Rumble and etc.), so I have a lot to compare it to. Just come and try it you'll love it!

I stumbled into Ark Fit just planning to look around and tour the gym. I hadn't worked out in years…read moreafter having a baby and honestly wasn't planning on jumping into anything serious. But while I was on the tour, the trainers encouraged me to try a class starting in 20 minutes. I was terrified, but I said yes.....and that one class reminded me that I could do hard things. It was exactly the push I needed (thank you Michelle and Tobias), and I signed up the same day (with zero pressure from anyone). Thank you Eric for answering ALL of my questions about membership and for being a welcoming presence while I nervously walked into a gym for the first time in years. What makes Ark Fit different is the people. The trainers don't just run a class, they bring the energy. They correct your form so you get better and stronger, and if something feels too hard, they'll modify it so you can keep moving. Every trainer has been warm, encouraging, and truly meets you where you're at. The members are all ages, and fitness levels, which makes the space feel welcoming and inclusive instead of intimidating. Plus everyone I've met has been kind and encouraging giving high 5's or a word of encouragement between workouts. This might sound like a paid ad lol it's not, Ark Fit sells itself. After just a few classes, you'll see what I mean. If you're reading reviews like I used to, wondering if this is the right place, I hope this helps. We all start somewhere. See you in class!

Great environment with welcoming members and a friendly, helpful staff. The facility itself is…read morehuge, with plenty of high quality equipment, so it never feels overcrowded. One of the biggest advantages for me is the flexibility. Being able to show up without needing a reservation makes it so much easier to fit workouts into a busy work schedule. Everything is also very clean and well maintained, which makes the overall experience even better.

Tried OC Fit while visiting from out of town and had such a great experience! The class was HARD…read morebut so fun -- the perfect balance of being challenged while still being able to go at your own pace. Everyone was super nice, the environment was welcoming, and the space is huge. Connor was an awesome instructor, and even though they knew I was just visiting, the team was so attentive and helpful throughout the entire class. Coming from a fitness/group class environment myself, I really appreciated how supportive they were with their clients. If you're in the area, I definitely recommend giving this class and community a try! 10/10

I started my fitness journey at F45 Tustin a little over a year ago in 2025, and I can confidently…read moresay that it has been one of the best decisions I have made. The results speak for themselves. The physical changes are noticeable, but more importantly, the consistency, energy, and overall mindset shift have been just as impactful. What truly sets this location apart is the coaching staff and the community. The coaches strike the perfect balance between motivating, encouraging, and keeping things fun (even during the toughest sets). They push you when you need it, support you when struggling, and genuinely care about your progress. Equally important is the community. What started as a group of people working out together has naturally evolved into real friendships. That kind of environment is rare and important to me. If it were not for the great people here, I would have stuck with my other Fitness membership. Speaking of which, in full transparency - I still have another fitness membership elsewhere. However, I have not touched it in months. If one is looking for a place that delivers results, keeps you engaged, and surrounds you with the right people - this F45 Tustin location is the place to be.

F45 workouts are the best part of my day! My usual gym is in Irvine which I LOVE! But I have been…read morewanting to try the Tustin branch out for a while now. They have many class options but they do seem to get busy because they're waitlisted on the app. I managed to passport one Saturday morning. I liked the trainers, the vibe and the music. The DJ arrived for the class after mine so I missed out on that but I still liked the music. I noticed the gym was air conditioned which was different to mine. The instructor's were great at walking around and giving you tips on your workouts. The workout was amazing as always, it's really as hard as you decide to push yourself. So you could have an easy workout by doing body weight exercises or you could lift heavy. Easy parking in the lot up front.

Had a chance to work with the owner Josh. Great guy and runs a solid gym. I would highly suggest…read morethis business to anyone that's looking for a great experience. Thanks Josh!

I got 2 gift certificates to try this place out, so I brought a friend with me. We were really…read moreexcited to try something new and possibly find a new gym that we liked. Unfortunately, she lives in Long Beach and they wouldn't honor the gift certificate unless you live within a 10 mile radius. We were given the options of buying a day pass or sign up. After a bit of bickering back and forth, we decided to leave. The 12 may be a good gym - but it def left a sour taste in our mouths. It was def a bummer that we weren't able to try them out and test the ice plunge thing. Oh well.

I've been doing Pilates with Dondi for a few months to help with lower back pain, and I've seen…read morereal improvement. Dondi is knowledgeable, kind, and takes time to explain each movement and the muscles involved. She picked up right where my physical therapy left off, focusing on the areas my doctor recommended. The schedule is flexible, and while the cost is on the higher side, the small class size and personalized instruction make it worth it. Highly recommend for targeted support and steady progress.

I love coming to Dondi and her studio. I've been to Pilates classes in the past but have always…read morefelt uncomfortable in a large class not knowing if I'm actually doing the moves correctly. This is a lot less intimidating and she really helps you with your form and technique. I've been coming for almost 3 months and have lost almost 20 pounds. My husband and kids have noticed I'm a lot stronger and toned. I used to only be able to do maybe 1 push up and now I can do 30 push ups and I even beat my son at the monkey bars at the park. I look forward to every session with Dondi. I highly recommend you give Core Plus Pilates a try. You won't regret it!

Becky is a fantastic instructor who is challenging but also understanding of everyone's abilities…read more She provides easy modifications and always has an even, steady pace. I never feel rushed, like I have to try to keep up. She also demonstrates all the movements so you know how to do each move. I've enjoyed her classes so far, each one has been a different, challenging workout. I'm new to Pilates so I look forward to continuing learning from Becky

I'm an avid cyclist, and I recently took up Pilates for cross training 3 months ago; I've tried at…read moreleast 10-12+ studios trying to find what will be my "home studio," and I think I found it with Neaumix. The Von Karman and Northwood locations are under the same owner, and I love that I can use my passes at either location AND book up to entire month in advance; I'd give them more stars if I could, as that's truly rare among Pilates studios with 1-2 weeks being the norm. Parking is super accessible at both, and the studio size is perfection and capped at 9. I've tried different studios that cram 15+ reformers in a room, and there is simply no way for an instructor to be diligent in checking the form of that many people at any given time. Some studios sacrifice quality for quantity - not here at Neaumix though! I appreciate the classes at both Irvine location being a tad longer at 50 minutes, instead of 45 which is common at other studios (including other locations in the franchise). 5 minutes may not seem like a lot, but you can do at least 2 additional movements in that time period to maximize your workout and target additional muscle groups. I have genuinely enjoyed class with each instructor so far. Mariana (Von Karman) and Emily (Northwood) are especially top notch for their incredible attention to form and wonderful cueing. I also enjoy the movements in their classes, as I find them more dynamic, often engaging multiple muscle groups simultaneously to get an efficient, engaging work out. I consider myself fit and in great shape, but I leave each class humbled and sweaty. Today, I had a glitch with their booking platform where it wasn't deducting my passes properly, essentially giving me extra classes. Not wanting to abuse the system and take advantage of the error, I called the owner to report it in case it was a wider issue. John was so nice and appreciated me raising it to his attention; he even gave me a complimentary pass, which was truly too kind considering that they already give each client one free class. Can't recommend Neaumix enough, especially Northwood and Von Karman.