Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst unit I ever bought

Bought unit,did not work out of box.Called and e-mailed customer support,was told supervisor would call,NEVER HAPPENED.I called a third time,was told "we do not have fix for until mid to late jan. we are just starting in usa". returned unit to amazon(with no greif from them at all THANK YOU) AND BOUGHT GARMIN NUVI680 for which I am extermley happy with. DO NOT BUY NAVIGON!!!!!