Please please please, if you plan to use a GPS make sure that you plug it into your computer once in a while and UPDATE the maps. A lifetime map update is great but it doesn't update without plugging into a computer. Yes you are using multiple satellites to find yourself but they don't transmit updates to you as you drive down the road. Just today I heard a woman say she can't use her GPS in new subdivisions and that it doesn't show NEW points of interest (POI's) and when asked about plugging in to update, she looked at me as if I was stupid duh...