Instruct: Classify a given review into positive or negative sentiment.
Query: GOOD WHILE IT LASTED...but 18 months later it is WORTHLESS

Up until it stopped working I used to refer to this little device as "the best thing I ever bought." It stopped being able to lock onto a satellite and after following the tech support advice, it still doesn't work. Of course, Garmin was gracious enough to offer me a refurbished one for $175. THANKS BUT NO THANKS!!! You can buy a NEW one for $175. I WILL NEVER PURCHASE ANOTHER GARMIN TO REPLACE SOMETHING THAT SHOULD HAVE LASTED MORE THAN 18 MONTHS.