my apartment building in Boston (part of AvalonBay Communities) installed Latch last year, and I can't agree more with this article. sure, one 7 digit code isn't difficult to memorize, and I obviously memorized the code for the door to my unit. but in my building alone, there's one door to the main lobby; a first-floor main entrance; another first-floor entryway that requires opening two distinct doors sequentially; and, in the adjacent building where the gym is, there are at least three doors to enter the building from outside, plus a second door to the gym itself; and EVERY DOOR HAS A DIFFERENT CODE. it's an absolutely terrible system