I've only used Level one so far. I love it. I have 30 Day shred; Shred it with weights; Burn fat Boost metabolism; and No more trouble zones. This (and Shred it with weights) are the only 2 where I haven't made it past level 1.This workout works the entire body with lots of focus on the abs. Planks, standing ab work, floor work and cardio all in one workout.