Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Would be great ... if it worked!

I recently moved to a new city, and I thought a GPS would help me find my way around, so I bought this package to add on to my Palm V. It would be great, except that I can't seem to get it to work about half the time. Often it can't find the GPS signal, and causes my entire Palm to reset itself. At first it worked much better, but for the last two months, I have not been able to make it work at all. I'm quite disappointed with its quality, but otherwise, I think the size and functions it provides are right on.