I've had this product on my front and back doors for almost three years now. My house had been broken into and shortly after I bought and installed this handle/deadbolt on my exterior front door. The perpetrator kicked in the door which obliterated the door frame however the door handle and deadbolt received no damage whatsoever! I was still able to use the handle/deadbolt when the new door was installed. I really like the smartkey feature too. I was able to rekey the back door deadbolt myself so that I only have to carry one key for both front and back doors. Installation was very easy as well as the smartkey function. Product still looks new even after almost 3 years of being exposed to the outdoor elements of hot sun and cold winters. Very happy with my purchase.