This product is AWESOME! It only takes 3 AAA batteries which makes keeping it going super easy! You don't have to charge it or go find some unusual battery which makes things super convenient. The backlight is bright enough to unlock your door in the darkness. You will have no need for a flashlight. The buttons are soft and easy to press. 
The installation was a breeze. It's pretty self explanatory to begin with but the instructions made it super easy. The instructions were great for learning how to set up the lock and program your passcode. I really liked that you can have so many custom codes for 1 door. It would be really great for landlords and places that have quite a few employees needing entry to places. I would recommend 100%. You won't need another lock because this does it all!