just an update. I went today. You guys were right. All twinks and women.

All the good looking chicks were married or have boyfriends, I checked.

Anyway, the people do different workouts, but they are all a version of the same thing, workout is like this:
jog or use a rowing machine
21 front squats with bars with rubber plates, beginners use plastic sticks
10 clapping push ups
10-12? chin ups with strap connect to bar and person's foot
repeat
im guessing it a modified and tone down 300-ish workout.
I am not going back. I was just watching today, but i left 3/4th though the workout. The pt was newly certified. The chick helping him, i don't think was certified, was trying to teach this guy on how to do a squat, and she was actually teaching him wrong form.