Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good until the buttons stopped working:

I was pretty happy with the phone until, shortly after a year, the buttons became increasingly harder to push. I've contacted Uniden and they said they would only fix it for free if it was a "known problem." Not surprisingly, they said this was not such a case. Now what I want to know is if anyone else here on Amazon has had this same problem? If so, let's make it "known" so that Uniden will either fix it for free or give us a replacement. Though at this point, I'd rather have my money back than rely on their products and Customer Service again.