I originally stumbled across this gym as I wanted to get into hyrox and it was a recommended gym…read more I have been going to Chicago strength for about 2 ish months now and I really enjoy it. I like the structure of the workouts and that there are two strength classes a week. I have not ventured into the CrossFit classes yet I have only taken the Metcon, circuit and strength and conditioning classes. In regards to coaches they're absolutely amazing and all very informative, they give good demos and are motivational. I love Annessa, she's so smiley and friendly and really pushes me. Brennan is so fun on a Saturday morning and is super personable. Sean Cooney is a rockstar- he takes his time with individuals and works through injuries and provides alternative moves. He makes individuals feels at ease if they have to decrease weight due to injury and makes sure everyone is doing the exercises correctly. There's a lot of free street parking and the gym is extremely clean and have a sauna and open gym times if you have a membership!

I hate working out…read more One day I was on a treadmill in my apartment building and I had just had enough. I wasn't tired or sore... I was bored. I started looking around and came across Atlas' CircuitFit (and eventually Fit360) classes. You will not get bored in these classes. You are doing different workouts sometimes as quickly as every 30 seconds. I leave these classes with sweat streaming off of my chin. The real stars here are the instructors. I've been going here for about half a year and I can't say that I've repeated a class-long routine. I'm now up to 4 classes a week (the 5:45AM/6:00AM ones). The only criticism I have is that the showers need to be cleaned more regularly. I almost put 4 stars, but hopefully this improves so I don't need to update this review.

I've been working out here for about 10 months and I love this place. I can confidently say I've…read morenever been stronger or in better shape. You can probably find cheaper gyms but you will not find the high level of coaching, the well maintained equipment and the incredible community that you will get here. The workouts may seem intimidating at first glance but the coaches will help you scale them to a level where you are pushing yourself every day. I'm so glad I have easy access to this gym!

One word Legit. This gym will get you swole and also has a solid group working out together. Three…read morelevels total with Olympic options and many interval training. They have this win coach with a thick British accent that can really push you. I don't understand half of what he says but it's like James Bond is your coach. Definitely check it out when you're in town. They are also set up for COVID protocols because of their size

I've never felt stronger or looked forward to working out more since joining F45. Super positive…read moreenvironment, the trainers are amazing (love classes with Katelyn and Keely!!), and the gym is clean and spacious. So grateful for this community!

I recently started F45 in Skokie and absolutely love it! Since I'm in law school on Tuesdays and…read moreThursdays from 10:00 a.m. to 8:30 p.m., with only a few breaks in between, I can't make it to the Skokie studio those days. Luckily, I found another F45 studio right off the Diversey Brown Line . I have a three-hour break between my Constitutional Law class and my evening class (which always drags). Going home isn't an option because I know I wouldn't make it back to campus. So, F45 Lincoln Park North turned out to be the perfect solution. I hop on the train after my second class, get about 45 minutes to study, and then do the F45 class. The trainers there are fantastic! Shout out to Katelyn and Ashley, who I see every Tuesday, and to Keely, who taught me on a Friday, my very first day at F45 Lincoln Park North. Thank you, F45, for having me on Tuesdays and making my day both productive and fun!

What a great gym! I was visiting a friend and needed a gym and this place is it! Spacious and lots…read moreof equipment that will tickle anyone's fancy from powerlifting to olympic weightlifting and hyrox training. $20 for a day pass too? that's phenomenal. Staff was welcoming and place was clean. Easily accessible from the L too

Clean and super organized. I'd love to lift here soon…read more Visited for a powerlifting competition.

Absolutely stellar spot here - not only a highly-personalized fitness program, lots of scheduling…read moreflexibility, too. Planning to work with this team for the long-run.

Great training at this place! I have been here for ages-each…read moreclass is varied and challenging and fun!

The Den is a place of positive energy, knowledgeable and friendly staff! Well oiled machine of a…read morebusiness! It's not just another work out place, it's a community that supports your over all well being!

After a year at The Den, I can confidently say it's been a transformative experience. From the…read moremoment I joined, I felt welcomed by a supportive community and energized by the dynamic workouts. No matter what level of fitness you are at, The Den offers modifications while you build up strength and endurance! The childcare is a huge plus!

Started here a few months ago--came for the fitness, stayed for the community. The facility is…read morereally well lit and clean. It's also more spacious and organized than other CrossFit gyms I've been to. The layout makes workouts smooth so you're not bumping into people during a WOD. Great coaching too!

Spacious, clean, friendly, fun. It's tucked away with a private parking lot and sits on a trail…read more The staff, most of whom have been there for several years, is knowledgeable and makes new people feel comfortable and makes sure that they're safe. There's no reason to be nervous to try CrossFit, especially here!

I've been going to Phorm for about 3 years now consistently and STILL absolutely love it! My…read morefavorite classes are lower body strength and total body hiit, and every single instructor is amazing! They individualize their instruction and offer effective modifications when needed. I've definitely gained muscle, strength, and even improved my joint health! The classes are challenging but you feel great after. Love this gym and this community!

Nearly 4 years later and I love going to classes at Phorm! The coaches meet you where you are at…read moreand everyone is encouraging and fun. I am so much happier when I am regularly going to classes, feeling stronger than ever and enjoying the great people and fun music.

Just here to update my previous review. Still a very very good gym in the city (or should I say…read moreclub) - with everything you really could want for an entire day..,.work out? Check. Lunch? Check, swimming, tennis, golf, childcare, the list goes on. You can even get your clothes cleaned and your car washed. One drawback is the price. It is very pricey (with rates going up in 2026).., I don't really want to think about how much more I'm paying since I joined. However, I've easily spent entire days here swimming and working and working out so I guess I can't complain too much. Their spa is also great though it can get busy and in the summer the pool is a total scene (and packed). New locker rooms are underway (men's done and women's getting close) with new features and upgraded lighting and fixtures. Worth it if you don't mind paying for the amenities (and be careful with the house charge account ... it can get surprising!)

Great facility! There's so much to do and see. I'm here with my friend who teaches water aerobics…read moreand stretch. I decided to try some food since there's a cafe here. Since I'm a bit under the weather, these are the items I chose. Attentive server. Beautiful room!