Works mostly...

You really have to pay attention when using this app or you may end up going the wrong direction. I hate to say it, but even something as simple as navigating from Tulsa Oklahoma to Mobridge South Dakota will redirect you over 200+ miles out of your way in the wrong direction! I never rely 100% on this app and always study other maps first to make sure I know where Im going so I have a good idea when its telling me wrong. Its OK when you get close to your taget but Ive been burnt several times with nonsensical routes.

AvgJoeDude about NAVIGON USA, v2.15