Phenomenal. I think I would have read it all in one day even if it wasn't my goal for class XD The prose is beautiful, lyrical as the poems that close each chapter. I was a little wary at first because I thought it was written all in poetry, but I really liked that it was both prose and poetry. 
 Even though Emily has been through a great trauma and the story is about her struggle to reconcile with everything, I did feel a little detached from her character; however, I didn't mind that so much. The story and the prose itself were more than enough to move me along. The flashbacks interspersed throughout the present I thought were well-done, but might be confusing to some. 
 Themes in this book include suicide, grief, and, surprisingly, God, though that was a minor thing in the last quarter of the book or so and didn't really bother me. There is another huge theme that I won't spoil - you definitely won't want me to! A big thing is truth - staying true to others, and staying true to ourselves. It would be a good point of discussion for teens. The only thing that might have been missing was gun control. Though it was written last year, the story takes place in the mid-'90s before Columbine so I feel that would have been a bigger debate. This is a great book to recommend for those who like poetry, those who like reading about tragedy but with a happy ending, those who like modern-day (or close enough) stories with historical parallels, or just anyone looking for a great book! Definitely buying this one =D