Forced upon me by the management of my rental building. The system is (1) very slow (even slower than reaching for a physical key and unlocking with it); (2) extremely unreliable. I have lost count of how many times I got trapped in the elevator because the Latch app just won't unlock the elevator lock. To make the matter worse, there are locks that only my wife's iPhone can unlock but not my Pixel, even using the same account!