Whew! Short and sweet but tough! My legs got wobbly towards the end BUT the reps were just enough to push you.....hard! I also felt it in the upper body a bit due to the weights! An added bonus. I did the premix with bonus abs #1 at the end. The problem is that after you finish the abs there is a short (1 minute) stretch for the abs then THATS IT. The credits rolled. I had to go back to the main menu, chapters and choose the stretch for the main wkout. Bummer.