Instruct: Classify the given review into positive or negative sentiment.
Query: Won't last for more than 2 1/2 years

The unit functioned okay for 2 1/2 years of low use until the touch screen stopped working. There is a forum on Amazon where dozens of users have had the same problem and Garmin won't fix the units even though there appears to be a serious defect. Another problem was that the longer I had the unit, the longer it would take to acquire satellites. I'm now shopping for a new unit and won't give Garmin my business again.