I love Scalzi when he's being snarky. It's the kind of humor that made me fall in love with his writing when I read The Androids Dream.

I enjoyed the Skeptical attitude and Realpolitik, explaining the reason behind the forces at play.

However the whole book seems to be written with one voice. The same tone provides almost every sentence. Perhaps it's Wil Wheaton's Narration, but most of the characters seem to have the same attitude.