I really like the step by step direction features of my Garmin Nuvi GPS system.  The upcoming road feature is helpful, although I wish it would 'say' the road instead of just showing you the road that is coming up.  The one drawback that I have found is the loudness of the GPS Garmin Nuvi.  It would be nice if it had a volume control on it.  Sometimes I find it WAY TOO LOUD so much that it almost startles me when I'm not expecting it to speak, but on the other hand, sometimes I wish it could be louder especially if on the highway or a noisy street then it's almost too hard to hear.  Sometimes...