Mixed feelings about this. I very much enjoyed the title character, but the narrator, Cas, I found extremely unlikable. He's like one of those terrible urban fantasy protagonists (they're not only found in UF, of course, but that's where a goodly proportion of them seem to reside) who's convinced he's got no ties to other people because he's so dangerous and cool, when really he's just an arse no-one wants (or should want) to hang out with.

Really, he seems to view everyone around him with condescension and contempt. Typical for a teen, I know, and as the book went on I began to understand that his horrible personality is really a consequence of PTSD resulting from that staple of YA that is Daddy Issues, but still. I can understand it, but I still find him annoying, though he did get a little bit - a very little bit - better towards the end.