Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Boring and Sour

About 25 pages into this book, I found myself listening only to sour notes from the author. By the end of the book, I had listened to a symphony of sour notes. The author just came across as crabby about others and completely clueless about his own inadequacies and sour personality. Have to wonder why the guy even attempted to hike the AT....