Apparently I'm the only one giving this book a bad review, so it's probably just me. But the point of reviews is to give your opinion, so that's what I'm going to do.
With the exception of "Extras," I liked every single book in Westerfeld's Uglies 'trilogy.' So when I picked this book up, it was with high expectations.
They were not met. The characters (I mention them every review because for me, they are the core of the story) were under-developed - completely flat. Many were naive and didn't grow in any way throughout the book. Also, they're personalities didn't seem to vary much outside of their special powers. They all talked the same, preferred the same things, etc.
Then, we have the plot. There was a bunch of action, but for some reason it just kind of bored me. I didn't like the pacing. Also, many of the action scenes seemed repeated over and over again without variation. The characters didn't learn and the results were always the same.
Then, the fact that everything was explained to you, instead of letting you discover it. Not my style.
The idea for the story were very good. 25th hour, only you and a few others can experience it...but it didn't live up to the potential it had.