Excellent book in an excellent, yet quirky and strange, world. The characters were well rounded with their many faults. I loved the relationship between Finn and his oathbrother [whose name escapes me at the moment]. Their arguments and conflicts were real but the loyalty between the two of them was lovely. 
 I liked everyone but Claudia. She was too selfish for my liking and had no love it seemed for her father. The man who gave her everything and yes, was forcing her into a marriage she didn't want, but I did not understand why she could not love him. Maybe it's just my close relationship with my own dad. Forcing Finn to leave his friends behind, only thinking of her own means and not thinking of his new life. Selfish and I found I did not enjoy reading about her too much. I, however, loved her father and Jared. 
 Also, I wished there was more of comrademinship [is that a word??] between Finn and his companions on their trip through Incarceron. That would have completed it for sure. 
 Other than that, highly recommended.