Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Reusable Coffee

The K-Cup Reusable Coffee Filter is a wonderful additon to a wonderful product. We so enjoy the variety of coffees and teas that you get from the various partners to Keurig. This coffee filter just allows more options for this wonderful single cup brewing machine. Bravo Keurig and Bravo Amazon for making it so easy to get to my front door.