Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Broke down after a few months, no customer service

The machine worked for about four months, then the power supply went out. It took 2-3 months to finally get the company to send a new power supply (for which I had to pay $5), and the machine STILL doesn't work. No one any longer answers their customer service line. They say to send an e-mail--to which there is never a reply--or to call back later. A total rip off. Buyer beware. Amazon should be ashamed for even selling this device.