At first, it bothered me a little that the book was a YA, and that we needed to ignore the girl-meets-cute-boy-clichet plot, but as soon as the story start developing itself, it all becomes irrelevant. It is a book directed to young adults, but its strength is far more important, and yes, it is, by far the best YA I ever read.
I think it's really touching. And yep, I cried a lot reading this book (even in public places!).
So read the book if you feel like wearing your 15 years-self.