Having already read most of the books... I was actually pretty happy with it. Twas like looking through another persons eyes at the books, and as he said in the Introduction
"In producing this book,I have not tried to extract every single gag and witty exchange from the series. Threre are too many, and to do that, I might just as well have tied a set of the novels up with a string and added a tag: "The Complete Wit of Pratchett."