Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Captivating

I Know This Much Is True is a very interesting book. Dominik, the protagonist, is one of the most complex characters I have ever read about. The relationship between Dominik and his brother is the finest part of the book. Sometimes Wally Lamn gets a little sidetracked with a lot of sex, which becomes monotonous after a while, but other than that, it is an excellent read.