This is good. Builds muscle strength AND serious cardio.
I'm so glad it came along because man alive, no offense to Tony from P90X, but I'm ready to break up with him.
post edit: I'm really not breaking up with Tony...I still like P90X, but this new one is a breath of fresh air, and man alive is it ever tough. I'm not sure how but I want to incorporate both plus a little Jillian...we'll see how it goes.
