Been off the boards for a while, thought I'd come back. Just did a focus group with p90x, I have to say you will not get huge, but you will get results like an athlete. It all is on your goals. Wish I was running a stack at the time, but it has been a long time since I had any gear. Tony Horton is a funny guy, a little weird in person, but it works, like anything else though, you have to want to work out.