It took my awhile to get used to not using the key, but now love being able to quickly unlock/lock the door and not fumble for keys. Running around the block with my kid I don't even need to bring a key with me--it's rather freeing. I had an issue installing the first lock I bought and they quickly provided a new lock under warranty and install went smoothly. Re-keying the lock is a snap and programming the codes is also easy. The lock make a rather loud whirring sound when locking/unlocking which surprises people, so not good for a sneak entry if that's a need.