Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Garmin Nuvi 250W

I'm very happy with my Nuvi. I bought it to replace a very old NavMan loaded into my Compaq IPaq. Turn by turn directions with voice is very helpful, and bright color display is excellent. It oaccasionally takes a while to find the satellites, therefore I'm only going with 4 stars - otherwise it would be 5!