I really enjoyed this book-- well let's be honest, I like the world she has created both here and in the Mortal Instruments series. All and all, i think this one may have been my favorite in the series, but let's face it, I rated them all the same so it was a very thin line. 
 (view spoiler)[ Truth be told, I love that Tessa never has to choose between Will and Jem. The resolution where she actually gets to be with both is very satisfying to me. It takes away some of my annoyance that all YA romances seem to have young women having to 'pick'. (view spoiler)[ (hide spoiler)] (hide spoiler)]