Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great GPS

It's smart enough to know when I make a wrong turn. Also smart enough to avoid highways (preference because I'm really close to work). It's really cool being able to pick a destination and just go. Miss a turn, no biggie, it slightly scolds you, says recalculating and then sends you on your way. I'll also say the GPS Receiver the SirF Star III I believe is most incredible. I've got a handheld GPS and the TTFF (Time To First Fix) is incredibly short. I haven't tried the traffic receiver yet, but I'm anxious.Only complaint, while mine has the most current map the POI database that's preloaded has a few establishments that are closed at this time, and some new ones (restaurants and such) that aren't in there. I'm relatively new to the GPS market but I haven't found a way to update them via purchasing maps from the manufacturer or otherwise.