So far so good - I did run throughs of Break-In A and Break-In B on Wednesday, then did A on Friday. Since Monday was Memorial Day I took the day off and am planning to do B today. I like how the workout feels, especially when it's complete - I know my previous routines had some isolation exercises, so this is the first time I've been doing compounds throughout. More functional is probably a good way to describe it - that it can be used for more purposeful activity than the isolated muscles. It seems like it's more efficient too - only 6 exercises in the actual workout, though I do all of the warmup exercises in the book as well (walking lunges, lateral lunges w/reach etc) but it takes me less time than my previous workout did.