Objectively, I don't think there was anything wrong
with this book. Maybe I just read it at a bad time. It's a perfectly serviceable urban fantasy, really.
It just didn't work for me. The plot was... well, it should have been exciting, but it just didn't engage me. I didn't care much for Sylvie (although I also didn't feel any strong dislike for her). I didn't get involved in Kevin & Bran's tragic love life at all - they both felt like cardboard characters to me, and I just couldn't persuade myself to care.