I really love the resolution of the screen on the 3790 as well as voice commands, traffic, junction view and the overall size.
But, I spent a lot of money to upgrade to the 3790LMT from a 750. It never occurred to me that some functions I took for granted on the 750 would not be available on this newer device—such as importing routes from MapQuest or GoogleMaps.
Also, for these higher resolution models, the POI bitmaps should be larger so that they appear on the map without zooming in to 200 metres or less.
It worked great at first. Traffic stopped working and I am getting a cable from factory. Now all of a sudden, address pop up and "go" appears. Don't matter if on route or just driving. Otherwise great unit. I like the Bluetooth and voice command.