Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT BUY

I just returned my Nuvi 350 (within a month of shipping date back to amazon).It worked very well the first 3 weeks or so. Then while on vacation in California on my way from Berkeley to Vacaville, it lost satellite signal.It never gained back satellite signal that whole day until I got home again. Ever since then over 90% of time it froze up because of no signal at all or poor satellite signal even out in the open. It basically became useless since then. I tried reset and even discharge/recharge the battery. Nothing worked.