Good product, but the required maps should be sold with the hardware. Buyres may be misled on the real cost of the product without the map software and unlock codes. The fact that you need to purchase seperate map softwrae to get the unlock code to use the product is frustrating. City Navigator Map software is expensive and it contains strange anomolies in some regions of the maps. The ability to plan your route on your computer and download routes is a real plus for this GPS Unit. The integration of XM radio and Weather maps is a useful feature. Integration of XM raido eliminates the need for separate XM hardware. The Weather Map feature is interesting however too expensive to subscribe to unless you use it on a daily basis. As a hobby product it is too costly to subscribe to the weather feature.

Great having the XM feature and other options. Problems were with power cord (on third) and battery (dies deader than dead). Having to buy maps was a problem but great for both car/truck and boat.