Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Useless Product Guarantee!

Our aerolatte was pressed into domestic service to make froth for about 6 cups of coffee daily and it stopped working after only three months. The email address on the aerolatte 5-year guarantee policy is no longer in use and their web site doesn't accept product complaints once the boxes have been filled in. Their fax number listed on the aerolatte web site didn't connect despite many attempts. We bought a product with a 5-year guarantee only to discover that the company CAN'T BE REACHED, except when placing an order!?! In light of such poor customer care, I advise against buying an aerolatte product. As a byline, in 2007 we had bought three no-name China frothers at a very low price- they only lasted about 2 months each which is why we bought the "superior-original" aerolatte, which too, is JUNK.