We have this and it kicks our ass. My 15 year old baseball stud swears by it, though. It got him ripped, increased his core strength, and added pounds of muscle where he needed it to improve his bat speed. My wife loves the toning routine, and the "muscle mass" routine is pretty effective. None of us really
enjoy it
, but the program works. The food plan is not that tough--we normally eat pretty healthy anyway.
I had to take the last 6 months off from working out due to an injury (I'm old, what can I say...?) but looking forward--well, not really "looking forward", more like "anxiously awaiting"--the opportunity to start the 90 days again in January.