Bad points that I can think of: 
 -Kaylee suffers through some majorly annoying guilt fits that make her want to save everything. Does that make her a bad person? Of course not! Does it make her annoying. Yes. 
 -The line: "Noooo." How are you suposed to take that seriously? In a scene where some serious shit is going down, how am I expected to keep a straight face when an emotional aunt wanders in and seriously says "Noooo." 
 All I could think of is this ridiculous cartoonised Nooooooooo. Way to ruin the mood. 
 Apart from that I really can't think of any downsides to the book. The only real reason I'm giving this book a 4 (and its really completely unfair of me) is that I smell a love triangle in the making with Tod.I feel the need to inflict my insecurities on this books rating. I know, I suck. 
 EDIT: Okay, so far no love triangle, so 4.5 for the book 
 EDIT EDIT:(view spoiler)[Book 5: Finally! I knew it would happen! However the love triangle is so awesome that I couldn't give a damn about Nash anymore. Go Tod! (hide spoiler)]