I am in love with Crunch: Burn and Firm Pilates from Netflix. It is like circuit training meets pilates. The majority of the workout requires supportive footwear as you up standing for it. It is challenging but doable (which makes me really appreciate it) though I do not like the last 10 minutes which involves impossible mat work. Why impossible? Well... I do not have the flexibility necessary to complete part of it--which of course annoys me to death. I'll get there eventually!