Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great paper , great price

This is a high quality paper. Better than what Porter Cable makes for their sanders. It cuts very aggressively and lasts reasonably long. Just change it every so often and you will be sanding very efficiently. The price is very good for this nice of paper. Of course you will need some finer grits to have a finished product but this is an essential step in the process.