Have one with my insurance it lowered my premium a bit after using it but nothing crazy.
I do not drive crazy and mostly drive to an from work most everything else is walkable or a short distance.
It gives you a scorecard of how you are driving overall and has different catagories.
My only problem with it is the reason I simply have a "good" not "great" score is it says I take turns and corners too fast. In reality I park in a parking garage adjacent to my home and to get on the level I park at your go in circles to ascend up. The program thinks I am taking these crazy endless turns everyday and docks me.
