Saint, I did the program last year but didn't get all the way through. I made it to about day 60 but then life got in the way. The results just in that amount of time were amazing. Improved strength, stamina and weight loss. I'm not gonna lie, it is tough. A buddy of mine started at the same time and even though he lived in Texas and I am in Ohio, we lived it together. That was really a key for us, having someone to share your pain with because it really is grueling. We emailed each other daily and that was a big help. He did his early morning and I did mine late at night so he would clue me in on what I was in store for. I was not in good shape going in so you don't have to be but it helps. Just get through the first couple of weeks and you will be ok. You WILL want to quit the first week, no doubt about it.
As for the diet, I didn't stick to what they suggested. I just can't eat that way. That being said, I did improve my diet and that helped. I still ate alot of things I liked, just tried to cut back on portion sizes and things like that. It helped just doing that. I tried to cut out fast food (my weakness) and sweets. I would snack on nuts or protein bars as opposed to Little Debbies, pop tarts, potato chips and things like that.
Biggest drawback is the time constraints. You are going to spend around 1:15 6 nights a week. Unless you have nothing else going on in your life, that's tough to do. That was one of the reasons I had to stop. I coach baseball in the summer and once my season started, that was it for me. Work all day, coach in evening and then try to give time to family doesn't leave enough time for the X. I want to start again, the problem is I know what it takes and I'm not ready to commit. I have incorporated some of the workouts into a condensed exercise program but without the same results. Strength improved but no weight loss.
It won't be easy, I wish you well........keep us updated.