Which is worth way more than your opinion you gave away here. I guess some people just have to be a smart mouth dick to feel good about themselves.
As for the OP. I've seen this and it's one of my next purchases for my home workouts. I've got P90x, which was bought for me, and I've done one full round of it and had great results. I lost 37 pounds and that was with missing workouts, not eating properly, and not going full out on every workout. My wife and i are going to start a round together, tomorrow, and I'm going to do my best to give it my all, not miss any, and do my best to eat properly to see what I can really get out of it with proper motivation and dedication.
A friend of mine is also getting me the P90 and the P90M (Master Series) which are the two that came out before P90x for me to check out and try. But in the next few months my goal is to purchase Insanity, Rev Abs, and P90x Plus.
I love having these home workout systems as my main exercise program, as you can fit them in anytime to fit your schedule, and then I go to my local gym to use the track to run, swim in the pool, and play some basketball and wall-ball. When I'm really trying and motivated (Which is my biggest issue thus far that I waited so long into my life to get motivated that it's hard to get myself going like I want) I do a great job of getting lots of stuff in.
My goal will be to lose another 50 pounds to get myself to around the 190 range. So good for the guy who posted this. Keep us posted on how well Insanity works for you cause it looks like it's an absolute blast and I am looking forward to getting it for myself.