My husband spends winter in San Diego and so I spend the holidays there with family. I was looking…read morefor a place that would let me pay for one month without any registration fee etc. And this place is it. In contrast to the the gyms that are all so expensive (probably offer value to those who want trainer, group sessions etc., I just needed a place to lift and pump) and this place is wonderful. Large, spacious, so many different machines and loads of free weights. I also LOVE the people, both staff and the community. Really inspiring and supportive. As a middle aged mom/newcomer, I usually find new gyms intimidating. Everyone is so lovely, so committed to their practice, and lifting up others. You can also do passes for the day or week. Cannot wait go to back when I am back in the area.

It was a cool gym! Had some great machines. I did get the vibe that it was very cliquey in this gym…read morewhich is not a great feeling. But I just came for the day, if you're in the area and need a lifting gym, this one is great.

I love this gym! Been going here for over 5 years now and I love the low-key vibe. I come in here…read moreand most of the time it's just a few other people with me and sometimes it's just me so I'm able to get my workout done without any distractions. I love you 24-hour access because I never know when I can go but it's good to know that I can go whatever I want. They have a new sauna which is great and you can schedule a sauna session and have it all to yourself. If you're looking for a low-key vibe and a gym where you're not hearing a bunch of grunting and slamming weights this is your place. Everyone here is so chill and respectful. The owner is also super nice and very helpful with anything you make need.

Joined Prime Fitness after visiting with my daughter, and it was an easy decision…read more Clean, well-maintained equipment with a solid variety, all spaced out in an open, uncluttered layout. The gym stays quiet and focused. No crowds, no waiting, no distractions. There's even a small outdoor area for stretching, which is a nice bonus. Parking in the back is consistently available, which is rare for this area and a huge plus. Keith, the owner, clearly takes pride in the space. It shows in how well everything is kept and the overall atmosphere. If you're looking for a low-key, non-corporate gym that's clean, calm, and easy to stay consistent in, this is it.

The friendliness of the staff was impressive. They remembered me early on…read more On my fourth third visit I had taken my ring off while swimming. I left it on the 4-1/2 ft marker. When I came back the next day, it was put aside for me! What a relief! Justin Hartley, the manager, is a real sweetheart. He extends a warm welcome and is encouraging regarding getting what you want out of your workout!

Came on a Saturday evening to try and get a trial pass to see if it's a gym I'd like to work out…read moreat. Was turned away as their "financial advisors" weren't in. They tried to sell me a weekly pass to enter for like $40. Don't come here. Not worth it. Also, this parking lot and garage structure has a lot of homeless folk and transient people in cars. Sketchy vibe. They don't appear to have a security or parking attendant. Skip this gym! Check out somewhere else.

I am still working out with Chris regularly and consistently. Chris truly is more than just a…read moretrainer, as a person that always asks a lot of questions regarding health, Chris also gives me guidance in nutrition, recovery health and other tips to make my fitness journey more effective. There is no gym or trainer in San Diego who cares about his clients as much as Chris, which is why I have been training with him for a quite a while now. Quality matters in a trainer just as much as in the client and how they show up in and out the gym, and Chris is that, a top quality trainer that just can't be beaten. Let alone, as a woman that gets intimidated by large crowded gyms, Chris' gym is like a safe place to me. Everyone who works out with Chris knows each other and it feels like a family-vibe whenever you go with just amazing people around. Chris is the best trainer in San Diego with the best gym in all of San Diego, and I could not recommend him more to anyone who is interested in starting their fitness journey! Thank you Chris!

I can't say enough great things about Chris Keith Personal training. Since Thanksgiving 2025,…read moreChris has helped me lose 27 pounds, but more importantly, I've gained so much happiness and confidence in just those few short weeks. His support and motivation truly make a difference every single session. He not only wants to make you look and feel your best, but also cares about you as a person. Because of the positive impact he's had on me, my husband has now joined and started training with him as well. I recommend Chris to everyone I know and I'm so excited to see how much more strength, confidence, and progress I will gain over the next year and beyond! Thank you for everything, Chris!

This gym has all the equipment you would ever need if you are serious about strength and gains.read more

Thanks for the hospitality while I was in San Diego, Dave! I have visited Gyms all over the world…read morefor 40 years. Grinder is among the top power/strength gyms you can find! Dr. Joe

I worked out 5-6 times a day in my early 40's. I'm now in my late 50's with meds. You know,…read more"hereditary" stuff. I had no energy with metformin and Lipitor. After over a year I finally consulted Nike and Glenn. They gave me a regimen with supplements vs prescriptions. I got off one of my metformin dosage, my Lipitor, one potassium dosage and 1 diuretic . I have my energy back! 3/4 mile vs 800 steps!!! I was out of breath walking in place. I love these guys!!! Give them a try. Literally energy after 2 weeks! Thank you Nike!

I was referred to Glenn and Nike after I ran a marathon last year and had a lot of hip pain. They…read morehave both coached and guided me through physical therapy, nutrition, strength training and tailored running plans to continue my half-marathon and marathon goals. As someone who has had a wide range of fitness goals over the years, mostly trying to accomplish them on my own.....what a difference the last seven months has made working with these two! I recommend them to everyone I know and am grateful for their knowledge, support and true care!

I've been going to this gym for about a year now and I absolutely love it! It's sleek, super posh,…read moreand honestly feels like a fitness spa. Everyone somehow looks effortlessly pretty, insanely fit, and always in matching outfits. The music is always on point, which definitely helps power through tough workouts. My personal trainer Morgan is the best -- she keeps me committed, motivated, and laughing while somehow convincing me I can do one more rep. Her energy is contagious! I alsIf you're looking for great vibes and an amazing trainer, come over to Fit and ask for Morgan Devine-Phillips

Signed up!! No excuse since it's 5 minutes walking distance from home, so I better have abs soon!…read moreLOLOL! This gym is bougie in the best way. Located inside the Carte Hotel with two floors of state-of-the-art everything...plus reserved parking across the street (a miracle in Little Italy). The staff? Superstars. Mitchell, Eli, Morgan, Monica, Jasmine, Nat, Asia, Jen, and the FIT gang made me feel welcomed! It's got indoor/outdoor turf, a pool, a hot tub, and equipment that looks straight out of a sci-fi movie. It's high-tech yalls! Views of Downtown and Little Italy? Chef's kiss. They've got eucalyptus steam rooms, fresh towels, spacious lockers and showers, and even grab-and-go drinks and snacks. I basically never want to leave. Group classes are where it's at: yoga, HIIT, dance, and even reformer Pilates (yes, I feel fancy). Booking through the app is a breeze. The gym is always clean, never overcrowded, and yes people wipe down machines. Germaphobes, rejoice! Worth it? Because health is wealth and this place makes fitness feel like luxury. My home away from home. Cheers to hitting your fitness goals!

I've been doing 1:1 sessions with Lydia for a month now. I have really bad anxiety around strength…read moretraining and she has made me feel so comfortable and strong! I've grown so much in such a short amount of time and I can't wait to see how my journey goes. If you've been thinking about getting a trainer, I definitely recommend doing it with Lydia! She is so easy to connect with and her warmth just makes you feel comfortable doing things out of your comfort zone. I look forward to all of our sessions!

I've been working alongside Lydia the last few months and have seen the attention she puts into her…read moreclients and her business. She's organized, a great personality and incredibly smart. I HIGHLY suggest investing into her!!!

How cool it an 11-year update?! That's how long it'd been since my last visit, and although the…read morebox had changed hands a number of times, the experience was just as fantastic. I had a great Sunday workout with a tight-knit and welcoming community and coach, then stayed after speaking to Mike, the owner. He couldn't have been more kind. You can tell instantly that he's a born leader. The place is clean as a whistle; you quickly get the sense that there is a lot of pride at work. I'll look forward to going back. Obviously if you're in the area and looking for a new box, or are new to CrossFit, this will be the place that welcomes you. If you're looking for a drop in, you found it. Hopefully it won't be another decade before I get back!!

Loving it so far. Patient coaches, nice facility, and a friendly community. One of those places…read morewhere the only thing stopping you is yourself because this place provides the tools and resources to succeed.

I took a yoga class at Mission Fit and really enjoyed the experience. The space is very open with…read moreclean equipment for personal training. The owner is friendly and welcoming.

Mission: FIT is one of my favorite ways to start the day. I am always challenged but with an eye to…read moremy needs and modifications. I have a chronic back injury and am never worried about whether or not I am going to leave with pain. The community in the classes is so supportive, welcoming, and fun.