Even with the "ask me every time" setting, it chooses the fastest route, not knowing that the shortest route may be only 30 seconds longer but may offer less risk of backups at certain times.7

You can also store your favorite locations and routes for later retrieval

I purposely passed some streets it was telling to me turn on to just to see how fast it would recalculate a route and it recalculated quickly.

but I will say that in a recent test it found the most efficient route of the three.