It is the best thing out there. My only regret about this book is the quality of the paper - too thin, and when you use it all the time, it tears easily. I hope in the third edition the publisher will upgrade the paper. I would be willing to spend more for better quality paper.
So, on a scale of 0 - 10, with 0 being blah and 10 being SUPER, this book is a 20!!!