I thoroughly enjoyed reading this book. It was well written and provided enough information to keep me glued to it. However, I was really hoping to find out more about Google than what would be possible from Google's own PR machine. The early search engine history and the development of that technology is probably the more fascinating part of the book. Which is ironic, since the book is supposed to be primarily about Google. My guess is that the author sacrificed the ability to write about more intriguing and behind the scenes happenings at Google for the almost unlimited access to the founders and the top managers.
Overall, this is a pretty good book, but a hard-nosed investigative reporter would probably have come up with more intriguing content.