First one stopped working after one week. Customer service sent another one that worked for a good 10 months but then did the same thing. When you try to manually try to lock or unlock from inside the house, the Locking mechanism sticks and almost won’t let you unlock or lock the door without using a lot of force. If you can get the door open, you can use the buttons on the outside to lock and unlock the door. You are virtually locked in the house if not careful. If you have weak fingers, you may be out if luck and will have to use the remote or pliers!  locking mechanism sticks bad!!!  Beautiful but faulty and can be dangerous in an emergency!!!!!’n