An absolutely fantastic book. It was the most beautiful love story I have read in quite some time. I absolutely couldn't put it down, devouring it in a matter of hours. The writing was so poetic and fluent, and the story was both funny and intriguing and sad, in beautiful ways. A book that goes slam into my list of favourites, without a doubt.
ETA, after reading some of the one star reviews...:
It is an idealised world, yes; fairy tale-like, sure, but still - so beautiful. Science fiction and fantasy appeal to me for that reason: They are realities I would like to have exist. Here, I think that a world where sexualities doesn't matter and it's all about the people, SHOULD exist, and COULD exist, if people would just stop and think properly about it. Who one loves should not be an issue other people get caught up in and get angry about. That's what Levithan is trying to show, I think. That's how the world should be like. Sadly, it isn't, but maybe there's a future like that.