The OTF experience is not exclusive to the workout. The team dynamic between Liz and Charlie created a culture that kept me coming back. Unscripted, supportive, and a "let's do this" attitude that you can't find any where else, has set OTF a part.
The instructors (especially Jerry) are very motivating and the work out is always challenging. It is worth the money - I only go twice a week and within three weeks, I noticed a huge difference in my body. The workouts are never the same, which keeps me motivated and keeps my entire body engaged.
I love the trainers (especially Charlie) and I love the other members of the staff. Jeff was nice enough to let me try 3 classes and each heart monitor to be 100% sure I liked OTF. I signed up right after my 3rd class.