Every time I use the app I have to force quit it at least once to get it to stop doing whatever backend query it's doing. Doesn't help that their chargers are barely compatible with my car (2014 i3) so the charging fails to start about half the time. The machine itself rejects the charge in about ten seconds so no big deal, but the app isn't built to handle this case and takes multiple minutes to realize something is wrong. So my charging cycle is to initiate via app, plug in, see a failed charge, force quit the app, find the station again, and repeat probably twice. Probably isn't this bad with newer cars, but I love my car otherwise. Made sure to get the one with the extra scooter engine in the back, so I can just drive around on gas if it comes down to it.