rand mcnally 7725

We purchased the 7725, and we were very unhappy with it. The first one would not sync with our computer. Come to find out the drivers were bad from the factory and we had to send it back. We ordered another (had to pay shipping again). I routed us miles and miles out of the way on the route it selected. We checked on older Garmin GPS, and three mapping sites that indicated the correct route was about 30 miles closer and much faster. I'm dealing with Rand McNally now, and they are trying to figure out why the software sent us the way it did. This unit has lots of potential, but right now, I'm not very thrilled with it. We'll stick with our very old Garmin until this one can get updated.