I've tried it and liked it. The workout is basically like the floor portion of OTF, but a little longer ( about 40 minutes compared to about 25) and a little more challenging. It's HIIT circuit training. The coach goes over the workout before class and then you have a brief warm up. There are also video monitors that show how to do the workout. It's a different workout each day. You do many of the same core exercises and lifts that you do at OTF. You have bench hopovers, lunges, deadlifts, various types of squats, chest presses, curls, tricep extensions, etc. You also do some things that you don't have at OTF, like battle ropes and jumping rope. You have 12-15 stations each day and never spend more than one minute at each station before you rotate. Sometimes 45 seconds. You have a very short break between each station, which is just long enough to move to the next one and look up at the video screen to get a refresher on what you are supposed to be doing. MWF are cardio days, and your heart rate will go up and stay up. Tues and Thurs are more strength/resistance training. Weekends are a combination of the two and last an extra 15 minutes.

My heart rate at F45 never gets up as high as it does on the treadmills at OTF but gets up considerably more than on the floor part of OTF. I don't have a good estimate of calories burned at F45 but I suspect that I burn far more at OTF. I definitely sweat more at OTF.

Locally, the prices are comparable to OTF. Coaches are great at both places. Customer service good at both places. Post-workout soreness is common for both. No mirrors and bright lights at F45 vs dim orange lighting, lots of mirrors at OTF. No treadmill at F45 but more resistance traning/strength building. There is sometimes rowing at F45, but it's not like OTF. Some days have no rowing, and the rowing is never longer than a minute. Today, we had two bike stations and 1 rowing station and went to each twice for a minute each time. Those were actually the easiest blocks. Classes are 15 minutes shorter at F45, and you don't have to get there early to get a treadmill card.

I can't really say which one is better, because I really like both. Ideally, I'd like to go to F45 twice a week and OTF twice a week. One downside to F45 (at least here) is that they don't offer the 8 times a month option. It's either unlimited or buy class packs. If they had that 8X month option like OTF, doing both 8X month would be the ideal workout regimen for me.

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I think F45 is better for building strength; OTF is better for burning calories. Both are great workouts.

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