Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Guitars

I am a fan of Ovation guitars, I already own two and will buy more. The History of the Ovation guitar is fascinating in itself as well as the great history behind it. Charley Kaman's accomplishments are impressive in the aviation industry, but are a renaissance for the guitar world.Ovation dares to color outside the lines and the results are fantastic. History happens. Here is the story of a revolutionary instrument that had its beginning the 1960's.Even if you are only interested in music, this book is enlightening in an unique area. The authors inclusion of his interviews with Kaman family members in his work is like sitting in on a story telling. You get a feel for the events as they take place. Particularly those of us who were around when the Beatles, Glen Campbell, Josh White and others rising. There are those ties that from Ovations' history that stir warm memories. In short, a good read.