Comments about Sony Sony Portable Navigation System:

The initial satellite acquisition takes time after which it works like a charm. The screen froze occasionally, but resumed when I toggled the on/off switch

Comments about Sony Sony Portable Navigation System:

Does not show current location and how far you are to next hightway exit or past last highway entrance, in case you need to call for help. Takes a long time to find satellite and register your current location for planning a route. Hard to figure out how to zoom in and out. Have to type in full address, other systems give you options once you start typing the first letters of the streets, cities, etc. Magellan has a better system for entering addresses.