I just finished this book, and I must say that I loved it. The sheer breadth and depth of arguments treated in the book is mindboggling. The authors cover from the birth of the universe, through that of our planet, to Evolution, our role in the cosmos (or lack thereof) and our best survival strategy in a universe which, if not downright evil, is at least very uninterested to our existence.
Mind opening in so many levels, it really is the very first 'science' novel.
I was a bit skeptic about the alternating structure at first, one chapter of novel followed by an explanatory chapter of science. Yet it does pick up and work wonderfully, giving you a light and varied yet interesting read. 10+!!!
(ps: I am looking forward to read the next one, now.