A quick read, I enjoyed the humor and the discovery of the narrative qualities of this universe. The three codas were also well done. In between the two was the actual ending of the story, which was lacking somehow. Can't quite put my finger on it.

When available through the library, I'll re-read this as an audio book, read by the incomparable Wil Wheaton.

Addendum: Read while traveling in January 2015. Wil Wheaton rocks this reading. Think I was digging too far for a deep ending; was satisfied with the ending on the re-read.