This story is very surprising, it kept me guessing till very late in the book what was actually going on. The book has some very dark themes, so be warned if you if you are sensitive to that.
There are a lot of characters in the book and since I listened to it on audio it was hard to keep them straight at times. 
I really enjoyed the story and look forward to book 3, though I consider reading it physically to avoid the confusion with the characters.