The writing is easy to follow and full of personal anecdotes. Overall, the book does a good job of showing that:
1) God is amazingly large. (There are a lot of numbers about the universe here.)
2) This is all really God's story, and that he chose for us to be in it.
3) Trying to make our names great leads to death.
I also really enjoyed the re-telling of John the Baptist's story in the context of those points.
However, the book is very short. I finished it in the same day that the UPS truck delivered it. The actual text of the book is about 140 pages, and it's 1.5-spaced. It almost seems like part of another book.
Also, don't expect to get too much "deep" theology. The book uses Biblical support for its points, but it doesn't feel like a book that really makes you stop and think.
In conclusion, the book is well-written and makes good points, but it feels like it only skims the surface of the material. It could certainly have been longer. That's why I gave it 4 stars.