Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not a Yamaha in my opinion

I'm very disappointed with this product. When I received this product in a Yamaha package to use with my Yamaha saxophone, I discovered that it was different from the original one that comes with the Yamaha saxophone. This one looks like a Rico and the quality is much worse than the Yamaha one. It can be used but the metal is not smooth and can damage your mouthpiece, and doesn't have any curve to hold the reed. Don't buy it.