I bought this smart deadbolt and installed it a couple weeks ago. Kids (teenagers) began using it right away. It is awesome so far. Some challenges getting it hooked up to Alexa app, Apple Home app, etc just because we don’t do it often and there are several phones in the family we had to set up. Additionally, I’m slightly concerned about how long the AA batteries last but that remains to be seen. So far, so good! Also, my deadbolt was installed with good alignment to begin with.