I can't really complain about them. I used one this weekend and it saved me from having to buy a very expensive train ticket. In normal instances the shortest r

I can't really complain about them. I used one this weekend and it saved me from having to buy a very expensive train ticket. In normal instances the shortest route between 2 points is a straight line. Which would have taken me through a very busy downtown. The Satnav had me drive 5 minutes out of my way to find an artery and saved me 30 minutes. I arrived at the station with 10 minutes left. If I had chosen the logical route I might still be waiting for the next train. Also, if you are in unfamiliar territory local knowledge is useless. And if you are local then the navigation is barely useful.