I really enjoyed this book, as it is part of an amazing series. I quite enjoyed that the battle within this series is within the walls of this dystopian hell as opposed to fighting to escape the confines of the city that the human population has locked itself in.
I found it quite refreshing to have secret family ties revealed quite plainly to the readers without any mystery, as the struggle to keep this truth private is more interesting to read about than a protagonist discovering this hidden truth. Along the same lines, I enjoyed the fact that a convenient memory loss that seemed a little odd in the first book to be rationally explained, and it serve the plot more than just providing an air of suspense.
Once again I found that most of the characters were quite well written, however, I again found the love interest in the series to be a little flat, as were a few of the minor characters.