The owner of F-45 is very dedicated to health and fitness. After managing the largest box gym group…read morein St. Louis, who was profiting from people who did not work out, he saw missed opportunity in helping to motivate people to regular fitness. They offer group personal training in a high energy environment. He is there everyday and it shows that he cares about his member community. They keep it fun and interesting with music and a different exercise program every time you visit. Highly recommend.

I am extremely disappointed with how this gym has handled a membership cancellation and subsequent…read morebilling dispute. I first requested that my daughter's membership be canceled at the end of September 2025. I followed up again in October, spoke directly with the owner, Greg, in November, and raised the issue again in December. In December, Greg specifically told me that the membership had been canceled when I originally requested it. I relied on that representation. I recently discovered that I had continued to be charged approximately $145 per month for my daughter's membership for roughly a year despite those repeated cancellation requests. When I brought the issue to Greg's attention, I was then told that I had supposedly signed a one-year contract and that I had never completed the required cancellation form. I dispute both claims. My daughter's membership was arranged over the phone, and I do not recall ever signing or receiving a written one-year contract. I have now formally requested that the gym provide me with the agreement it claims I signed. There is also a disagreement regarding the membership price. Greg stated that my daughter's membership was $99 per month. That was not her rate. The $99 rate was a separately discussed rate for my boyfriend based on his circumstances and being a teacher. My daughter's charges were approximately $145 per month. Today, September 25, 2026, I personally delivered Greg a formal written dispute concerning the charges. I simply handed him the letter and told him that I would not be letting the matter go. Rather than keeping the interaction focused on the billing dispute, Greg told me this was why he "can't do people favors," accused me of "making a scene" and making people uncomfortable, told me I could leave, and stated that he would be canceling my membership. I found that response particularly disappointing. A customer should be able to dispute approximately a year of recurring charges and request documentation supporting those charges without the conversation becoming personal. For clarity, the billing dispute remains unresolved as of the date of this review. I have formally requested the alleged signed contract, the applicable cancellation requirements, the recurring-payment authorization, a complete accounting of the charges, and reimbursement of the disputed amounts. I have also provided the gym with the dispute by hand delivery, certified mail, and email. I will update this review if and when the gym provides the requested documentation or resolves the disputed charges. This review reflects my personal experience and the status of the dispute as of September 25, 2026.

Amazing encouraging atmosphere, group classes are challenging and coaching is always available!…read more Personal Training, Challenges, Group Training and Supplements. Highly recommend

This is by far the best gym I have ever been a part of. It doesn't take long to feel like one of…read morethe family! The workouts are hard but Randy and his team can scale the workouts for all abilities! I am so thankful to have found this amazing gym!

I just started with Crossfit St. Charles. I love the gym and the community of people. Everyone…read morehas been so welcoming and encouraging. I've checked out several different class times and all the coaches are great! I'm not an athlete and don't know alot of the lingo, but that hasn't been an issue. I go to be my best self and so does everyone else. I highly recommend this gym.

In the area for a few days and decided to drop-in to the 11:30 am WOD and I was not disappointed!…read moreThe staff was super friendly, coaching was on point, members were fun and encouraging and the WOD was perfect. I will definitely be back the next time I'm in the area.

Lynette and all the uncharted team are amazing!…read more Love the culture and love the workouts. I left for a year and a half and Lynette remembered my job and that I broke my ankle.

Been a member for about 5 years. Large facility, very clean. 10 rowers, 10 fan bikes, 4 ski ergs,…read morereally large rig. Bathrooms with showers. Community is really strong. Everyone is cheering for everyone else and hoping they achieve their goals. The coaches here are very skilled and can lead athletes at all skill levels. I have been crossfitting since 2012 and the coaches at UCCF still help me improve on a regular basis.

I love quick hit fit. Derek is very knowledgeable, fun and encouraging. I have been going there…read morefor over a year now. During this pandemic, I like the fact that there is no one there except Derek, the trainer and me. It is a very safe environment. Where many people have gained the COVID 19, I have loss 19+lbs during this pandemic. I am in the best shape of my life. The money I pay for Quick Hit is very worth while.

We love QuickHIT! Quick but effective workout keeping us at the Cottleville Synergy Center in tip…read moretop shape! We absolutely recommend giving them a try!

Great location! As soon as you walk in you're welcomed by a staff member with a big smile!…read more They have a variety of workout sessions to fit your needs. They also have a large schedule from early morning to late evenings. There are two different packages - one for just this location and one for all locations. They are higher priced then most gyms but I do feel it is worth it. They also will give your friends a free trial to come try out the location with you before enrolling them. They genuinely want to make sure the gym is the right fit for you and do not pressure you to join.

Absolutely love this place!…read more The staff are incredible and the members are so kind. There is often an empty room available when I want to go, otherwise you can always tag along in with someone else. Great place to go!

Even with just one day at F45 Training O'Fallon, my best friend and I felt like part of the family!…read moreThe workout was intense but incredibly invigorating, and the instructors were so welcoming and encouraging. The diverse range of exercises ensures every muscle group is targeted, it left me feeling stronger and more energized with each station. Whether you're a beginner or a seasoned athlete, F45 O'Fallon provides a welcoming atmosphere for all fitness levels. It's clear that this gym is all about fostering a sense of community, which made my short visit feel special. If you're ever in town, don't miss the chance to drop by and experience the energy for yourself. Looking forward to be back! Thank you Kimberly!

My first F45 workout was nothing short of amazing! The energy, the intensity, and the overall…read moreexperience left me wanting more. I can't wait to return for another session. F45 gym, you have a new fan in me!

I have been coming here since 2014. The trainers are all highly educated and really put the time in…read morewith their clients. Sefton has been my trainer... helped rehab my broken back after PT... haven't had surgery and I am doing really, really well.... They also have a non profit that works with veterans and are doing truly remarkable work here too!!

Our son works with Brittany and Toma before that, they both have been fantastic to work with and…read morehope to be able to work with them for a long time to come. However, they couldn't do what they do if Emerge didn't provide such an outstanding facility! We'd highly recommend Emerge to anyone, but especially with kids that need/want to work on their fitness!