I love this smart lock. It looks solid black and only shows the electronic features when you touch it. You can either open it with you thumb print (or any finger for that matter), an electronic numeric combination (like a padlock), or using the app. You can even unlock the door remotely using the app. Multiple finger prints and passcodes can be used/saved allowing you every person/date/time that opened the door. The finger recognition is outstanding. I have only have it for the last three months, but so far it has performed perfectly.