Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Well executed, unsettling and often unpleasant

Mark Haddon has been justly praised from the hilltops for his evocation of an autistic savant's world, and his writing and plotting are expert. He also does an excellent job in getting the reader to empathize with a fundamentally unsympathetic character--even though I found myself often frustrated and annoyed with Chris in tandem with his fictional caregivers. Not recommended for anyone unsure about having kids!