On his cutting diets you are essentially all protein and fats for the first 4 meals, then after training you refeed with protein and carbs.
Bulking diets follow the same protein and fats, or protein and carbs, but he utilizes more carbs at different times during his bulking deal.
I have used them both, for years. And I am very very good shape. They arent the best diets by any means. I have found by staggering my carbs I do much better looking fuller and more vascular. But for a general all around diet, his plan works.
Ive met the guy in person. He looks cock deisel. Go view his page if you have doubts...