It was just ok. I didn't love this book. I also didn't hate it. The story idea and the characters were interesting. Except for Death. I think I would have like this book more if the "Death" character was portrayed differently. Also all his "Interesting facts" were "Annoying" and disrupted the flow of the story. Death's flowery Crayola talk made my eyes fill with Führer (yeah I said it) after awhile.
If I had to describe the author's writing style two words come to mind: pretentious and contrived. I'm hoping that the movie doesn't leave me with the same feelings.