I loved this book so much!! I loved the premise of the world and, by far, my favorite character was the Ryter. I did think that it was a bit fast paced and I thought the ending with Billy Bismo turning out to be Spaz's father was going a bit too far, since we didn't really learn a whole lot about Billy at the beginning of the book, and throughout the book. Until the end, I had almost forgotten that he existed. All in all, it was one of my favorite books, and it was really creative.