When it works it very nice. I set my location to go to work and it works well and guess the state or charge when I arrive. When I set my location back to work, the app just never calculates and gets stuck in a loop.
i tried again yesterday and it still did not re-calculate after i took a different route. The address was saved in my favorite list. When i leave in the morning (6am EST) the app works perfectly and even re-calculates when i change route. It only happens when i return home (3:30 EST). I really like how accurate the GOM for the battery is. Very helpful.