This is a great deadbolt lock that includes a key code and auto lock button.  First thing, it was very easy to install.  The instructions were very clear, and the pictures matched everything that came in the box.  The most difficult part was removing the old locking mechanism.  After I was able to install the lock, I downloaded the app and programed it.  I love that you can assign different codes to different people, and make them only useable for a short period of time.  This lock seems to be very well made, and I feel enhances the security on my home.  It also looks very nice.