All the talk about safety is a known number one priority and a larger computer screen easier to glance at then adjusting your eyes to a small gps device or smart phone. But as i am driving down the road my wife reads the directions and the computer also has voice directions. We also have a gps but cannot program a route of our preference like we can on the computer nor can we find something a little further out because the gps just shows a small area. I guess if you only plan on going to what you program in if you know it and not see anything else you can just follow gps but I have had a gps give wrong directions when i am sitting there looking at my destination.