Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Stopped working after 6 weeks

Junk. Don't buy. It worked fine for a few weeks (just long enough for me to invest in a large order of K-cups), and then just stopped working. Sometimes it works, but at least 50% of the time it fails to work. Resetting it, cleaning it, descaling it, turning it off and on have no effect. So, I walk away and then a couple of days try it again and it works. Maddening.Looks like I'm not the first one to have this problem. It's clearly a design/manufacturing issue - why won't Keurig cop to the flaw and refund us our money? Meanwhile Costco keeps selling these.