Depends where you are physically and what you are trying to do. It is a very polished, well-marketed, basic training program. I would also like to add that even though they give you like 16 dvds, all of the information will fit on less than 2 dvds, so you aren't really getting $90 worth of info, IMO.
However, if you follow it to a T, diet and exercise, for 90 days, you will make great progress, just as you would sticking to any program.
If sense were common, everyone would have it.
4/2007-Current 75th Ranked most popular image 1 spot behind Prince's bulge...