I installed this lock on our back door to make it easier to go out for a run -- I didn't want to have to carry a key. Actual installation of the lock was easy and didn't take too long. However, I had a hard time finding the compartment where the batteries go into, but I called customer service and they helped me find it. The keypad is nice because the numbers show up when you tap on the screen to wake it up. Otherwise, it's a plain black screen. I think this looks nicer than other locks that have actual buttons for the numbers. It's easy to lock the door also -- there is a lock button for that. If you do want a back-up (in case the batteries do die), there's a set of actual keys that can be used with the lock. This is a quality lock, and I feel safe using it. I do recommend this product if you are looking for a nice looking keyless entry.