Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Deserves no stars

The Keurig My Cup single serve reusable coffee filter is useless. It is a complete waste of money. I've completely followed the directions for using the filter and tried it with different amounts of coffee and different grinds of coffee, but it doesn't work. The water overflows and you get just as much hot water as you do coffee in your cup. Not only do you get watered down coffee, but you also get a cup filled with coffee grounds. Like most, I purchased the reusable filter to save money on the k-cups, but I have just ended up wasting more coffee.DO NOT BUY!!!! Well, unless you like watered down coffee with grounds and a wet counter.