It was a few months I followed the method with an ebook. I bought the book because it is more convenient! When the quality of the product, and although it's a great method, suitable for all, at least motivated that wants to put some shape to the one who wants much improve its strength, muscle size, endurance and flexibility without injury or taking the head or LOSE too long! And it's even better to have it in the book! ;) Anyway I course not bad, I practice a Matial art and it suits me perfectly! I recommend!