Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A slow start to a great novel

When I first started reading I Know This Much is True, I wasn't sure how I would make it through the 900+ pages. However, perserverance paid off! When the plot really gets going, it's hard to put this one down. Lamb does an excellent job of building his characters and weaving a detailed plot. I Know This Much is True is a realistic look at modern family life and the struggles between siblings.