I was so excited to get this and try this out. We have a large family and older children who have a tendency to lose their key or forget it. No longer do we have to make copies and we can get in and out of the house without a code. ￼ it’s a wonderful feature to also have an app to be able to control. My husband did the installation and he didn’t have too much difficulty with it and it is very up-to-date in style and look.