I relied on the good ratings and put this on my tbr pile a few years back. I occasionally venture into YA novels if they seem worth it. But the story kept me from approaching it casually. Incest is a serious issue with a variety of abuse connotations that are tough to even think about let alone approach in the form of a romance. So I felt I had to approach it with the right mood, not just casual curiosity. I'm glad I waited. This is one of the best books I've read. 
 Suzuma's choice of first-person narrative allows us to directly involve ourselves into the two main characters' minds and hearts as well as the complexity of their day-to-day life. The truth is that first-person narrative has rarely been a good experience for me in YA. I abandoned Twilight and Beautiful Disaster because of this. But here it works strongly to create one of the most sympathetic characters in the genre, Lochan Whitely. 
 Considering the issue Suzuma has centrally focused on, it would have been easy to make Lochan and Maya irritatingly self-absorbed or Mary-Sue-ish. That she doesn't shows not only her skill but her sensitivity because this is not a standard forbidden romance but something that the characters, the writer and the reader are always aware is a tough subject to deal with. 
 Highly recommended. 
 (Balmorhea's Remembrance kept playing in my mind while reading thanks to a fanmade video of Tom Fontana's complex depiction of another such relationship.)