Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Suspense is one of this Books Greatest Features

This book kept me awake long past 1:00 in the morning, because it's so interesting. Ashley is a two faced demon, Floir is exciting and vibrant, Richard is definitely a radio, Bjorn is worn out, and Trish just keeps going. My favorite part of the book is when Kate is listing her mother's faults and fault #10 is, 'if it weren't for Nair my mother would have a little mustache.'