This one will be tough to beat!
Most of all, I like the sense of immediate change of "instructions" when I decide on a detour based on traffic problems that I see while on an interstate. There is no immediate "make a U turn, and get back on the route, because I know better than you". Instead, you get a "sweet". Its as if the app reads my mind, and proceeds with appropriate instructions.
However, limitation of routes to less than 1000 miles is a bummer.
Wants nickname about
Mapkin - GPS Navigation, Maps & Traffic