Instruct: Classify Amazon reviews into positive or negative sentiment
Query: POOR PRODUCT, STOPPED WORKING

Chamberlain CLDM1 Clicker Garage Door Monitor IS A POOR PRODUCT, STOPPED WORKING, DON'T BUY, IF AMAZON ALLOWS ITS MARKET SPACE TO BECOME A DUMPING GROUNDS FOR DEFECTIVE MERCHANDISE, SERIOUSLY RECONSIDER THIS BUSINESS APPROACH.