I loved STS Total Body - Tri Sets for each body part, 3 different exercises, 16 reps, small rest, then 12 reps of the same set. Moved fast but very challenging. Then I did the upper body sections of high reps (my legs were too fried from a STS total body on Saturday & pyramid lower body from Fri night to do the leg sections but from what I previewed they looked awesome as well). LOVED IT!! Moved really fast, some neat new exercises using light/medium dumbells and the band. The core section was killer! Definitely both keepers will reach for these again and again. Thanks CATHE!!