Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a great buy

I have been researching camping in Yosemite using this book as a guide. From what I've found, this book is a terrible reference. The index gives the wrong page numbers for specific campgrounds, and the information given has turned out to be wrong for most of the campgrounds I have looked at. In trying to make my reservations I found errors ranging from whether or not the site required a reservation to whether or not RVs are allowed in the campground to whether or not there was running water at the site.