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Only place Garmin excels over other GPS units is in their hand held devices (such as the 60csx) that use the SiRF III GPS chip. For onroad use, where the SiRF III chip is not required for almost instant coverage under almost any type of condition, any of the units made by Magellan, Lowrance, Cobra, etc., are great. Most of the software comes from one of two sources.
The on road units can be off by quite a bit, but they are programmed to show location on the closest road. The hand helds are where you need extreme detail and there are NO roads to lock onto.

So, nice setup on the cobra.