I don't have the book, but the magazine has been publishing a few recipes from the book or according to its principles every month and I have tried those. There are some recipes on their website as well. I have enjoyed them and so has my family, they are healthy and balanced, although the calries go up quickly when you add a full serving of fat at each meal. Since I eat five times a day I can't do the full menus every time because that would put me over on the calorie intake, but the recipes are easy to modify and pretty fast for those busy nights.
Can't say that I have seen a flat belly bonus from eating that way though...