(This review was collected as part of a promotion.) I just installed my Weiser Powerbolt 3 Electronic Deadbolt Satin Nickle door lock. Everything needed was in the box (you only need a screwdriver and batteries). The installation steps were super easy to follow and programming the codes were simple as well. The door lock worked smoothly and looks great! I especially liked how I can use the smart lock to use my old keys so everyone doesn't have to change their keys. I would absolutely recommend trying the Weiser Powerbolt 3 Electronic Deadlock door lock.