First let me say if you are used to an installed satellite system, you may be a little disappointed with the size of the screen.  There is no getting around the fact that this screen seems tiny compared to factory installed systems.  However, the small size helps to make it very portable, and easy to fit in a shirt pocket or even mount on your bike (which is what I plan to do using the optional handlebar mount.)  So far the maps and directions have been spot on for me.  This is an excellent entry-level system and a great portable GPS.