Instruct: Classify Amazon reviews into positive or negative sentiment
Query: reusable K-cup

Bought this reusable filter so that my wife would have a cheap alturnative to the disposable k-cups. Works like it's suppose to, but its a pain in the butt to clean. This reusable filter will pay for itself quickly given the price of the disposeable k-cups. You have to play with the amount of coffee until you get it right (too strong, too weak).Other than a little learning curve, its straight foward and easy to use.