it is better than having to carry keys around
That said, I’ve had to unlock a door with a dedicated phone app, and it’s always way too many taps even if the app hasn’t randomly logged you out because your session is a month old or because your phone restarted to store an update. (Even more if you prefer to keep Bluetooth off -which among other things saves on battery.)
Happens to me at least once a month. But I almost never don't have my phone.
Very glad to be closing in on retirement.