I really disliked Wendy at first -- I thought she was a whiny, self-centered brat who seemed to take great pride in being a total bitch to everyone around her. As the book went on, however, she really grew and matured as a person, and made the hard decisions that were demanded of her. 
 The story ended rather abruptly, but I'm guessing it picks right up in the sequel, at least I hope so. 
 Finn is just smexy ;)