Instruct: Classify a given review as either positive or negative.
Query: BAD Design

The K-cup filter #5048 to use your own ground coffee is a great idea, but Keurig created a poorly designed product.Look at the blogs about it and you will find a couple "fixes" that will enable you to use it successfully.My question is why isn't Keurig fixing this mistake? Why should their customers be offered a poor design that needs "fixing" to work properly? Come on Keurig, step-up and offer a fix or a newly designed filter. Seriously, treat your customers well and they will be faithful.