Instruct: Classify Amazon reviews into positive or negative sentiment
Query: GREAT PERRFORMANCE

What a perfect marriage of price and performance. Worked flawlessly right out of the box. I'll never get lost again. The more expensive models have more bells and whistles but I really don't need all that.Minor complaints are, if you need real time traffic, you need to buy certain cell phones and none will work from Verizon. Too bad because they have the best network in the NY area. As with Mapquest, a few times you get a round about way to get to a destination but get there you will and it gives you alternate routes. You can update maps for free via computer USB port. Forget the optional AC charger as you can charge the unit in the car and when plugged into the USB. You must get the carrying case to protect the screen. This unit will blow you away.