I only have GS Legs, so I can't comment on the upper body stuff. But the Legs routine is out of this world. I've gotten by far the best results from it and make sure I do it once a week no matter what. My quads, especially, are much more defined than they used to be. And besides, I think it's the most fun of all Cathe's leg workouts, which is probably one reason why I see results - I can really get into it because I like it.