Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Great unit...WHEN IT WORKS!

For 18 months, I used this little gem, yes there were minor flaws, but overall, an excellent GPS. Then one day while driving it just stopped working! KAPUT! I checked Garmin's website and it costs more to get it repaired ($125 plus shipping) than to purchase a new one ($118 includes shipping). If Garmin can't back up their products better, I just assume go purchase a competitors model.Like I mentioned, the GPS is a slick little unit, but Garmin doesn't seem to care much about warranting their products.