I was sceptical that this would be easy to use, but it is! Easy installation in place of your deadbolt. The app is also easy to use. Comes with one time use codes for letting someone in while you are away. It also has the option for key use. Overall I have been very impressed,  I feel like I have upgraded my home. I can unlock the door through the app which is pretty convenient when carrying lots of items inside. My children never seem to have keys and were always loosing them so this is super nice if you have teens. It is also very nice looking and high quality. Very impressed!