I like the variety of exercises, the fact of always having an instructor to encourage you and correct your form, the possibility of modifying each exercise and going at your own pace, and having different time frames available each day
It's nice because you are with others doing the same workout yet you are pushing yourself at your pace. Everyone is only concentrating on themselves as opposed to going to a big gym where you arnt aware of how you are doing and others around you are judgmental of what you are doing.
I love that it works everything! I am always sore in different places. I can clearly see my full body transformation and I have never seen that with any other workout. The coaches are great and it's an awesome workout. Always different and challenging in fun ways!!