Instruct: Classify Amazon reviews into positive or negative sentiment
Query: WHAT A RIPOFF!!

RECEIVED THIS ON 3/18/10 AND NOW JUST HOOKING IT UP AND THIS UNIT ONLY WORKS WITH AN OPENER 2005 OR OLDER. THEY DON'T PUT THAT IN THERE ADVERTISEMENT!! SOLD BUY "HHWHOLESALE" I GUESS THEY GOT MY 20 BUCKS, ISN'T WORTH THE SHIPPING TO SEND IT BACK. WILL NEVER BUY FROM AMAZON AGAIN.