I live in a small town that is getting grown over by suburbia. The routes ignore all the nice open farm fields to the east of me, and runs me down the busiest streets through some of the most dangerous intersections in my entire state, just to skim by the edge of a park in the city.
In that same 6 mile distance, in addition to running past the farms, it could have run me up to the base of the mountains, down the nice bike trail that goes through groves of trees and open field, then back home.
This is one reason I love testing apps like this - my town almost always messes them up.