First of all, I appreciate that the keypad is reliable, and that it looks good. I like how easy it is to add and remove key codes. It seems really secure, and I’ve read good things about it elsewhere online. 

However
1. The key is hard to operate with it. That having been said, with the convenience of having a key code, I almost never use the key.
2. The key code is only four digits long, which seems a little short. Granted, I doubt that somebody will guess it, but I would feel better if it allowed for 4-6 digit key codes.