I love the encouragement, energy and guidance from the coaches. It is consistently a challenging workout.
My only concern with OTF is that the vibe among the members can be a little competitive. The treadmill cards have helped with that, but there seem to be a lot of class members who are rude or jockeying for position. No fault of OTF, of course!
I know I will get a great workout and I don't have to think about what to do other than scheduling. And scheduling 1 hour is doable. I like the accountability of having to schedule something as important as exercise. I describe it to people as personal training in a group setting.