I bought this keypad to add to an already installed August SmartLock.  I didn't really need it as I can unlock the door with both my Apple Watch and my iPhone, but I thought it MIGHT be convenient in the event that I needed to give a code to someone or as a back up plan, should I go out without either my phone or my watch.  All of that said, from the moment I installed it I haven't felt it worked as well as it should or as well as I expected.  The problem is the delay, which is inconsistent, but can be as much as 30 seconds after entering the code before it opens the lock.  When that happens you keep trying to re-enter the code.  This is a pain.  If I had known this i probably would not have purchased it.