I really like this product I like the fact that I can unlock my doors when I am away from home if I need to.  If my kids lock themselves out of the house I can go on the app and unlock the doors for them and they don't have to wait for me to get home.  I is going to be fun to use.  It is very sturdy the dead bolt on the inside the house seems to be pretty sturdy and looks at if it will hold up over time.