It started out seeming way to easy, but then we got into the yoga-based moves and my arms and shoulders got a good workout. It really does combine moves from yoga, strength and pilates. I was sweating pretty good in the middle and had to drop down to my knees during some of the plank/downward dog moves.
I have got to get back to hydrating! I just haven't wanted to deal with needing run to the restroom during every single passing period yet.