Liked it a lot! It reminded me of Patricia Briggs' "Mercedes Thompson/Alpha & Omega" books. What I loved about it was that we met Kitty at her lowest point, at a moment when she told herself that enough was enough and she started fighting for herself. And the ending? I actually cried, it was so sad. It doesn't happen often that I cry while reading books but this time I did. Vaughn really knows how to stir emotions.
Looking forward to book #2 in the series!