I bought it after seeing it recommended here (and getting an Amazon gift card for my b-day) and just finished it last night.
I, too, was really surprised - and a little freaked out - by the thoughts on calorie restriction.
Lifting weights seems like the next logical step in my fitness efforts, but quite frankly, I'm intimidated. I've never belonged to a gym or lifted anything bigger than a 5 lb. dumbbell. (I know a lot of the exercises can be modified for home, but I have no equipment and no place to put it if I did have it.)
That being said, I think the authors did a good job explaining the program and the exercises themselves, and I think I can manage it. After the first of the year I'm going to re-evaluate my budget, and see about joining a gym so I can start the program. Yes, that means I will be one the millions of people joining a gym after the New Year. We can all foolish together.