I am very satisfied with my SMONET Fingerprint, keypad, WiFi and Bluetooth electronic lock. It may require an additional hole if it is replacing an existing deadbolt. Other than that, easy to install if you follow the instructions. If you don't, you'll run a 50/50 chance of installing the lock backwards unable to lock or unlock the door. This is easily correctedThe smart lock does come with 5 keys (which you probably won't use) and 2 IC cards. You can setup a number of different types of the touch-pad entry codes. And you can generate electronic codes for use by your phone or temporary visitors. I've never had good luck with fingerprint readers. However, this one seems to work with a good degree of accuracy.For full functionality, you will probably need the bridge / gateway to connect to your home internet. I have tested and it works with Alexa. At the price, it's a great deal compared to competitive Smart Locks.The lock does with a plastic cover over the keys lot. I had some confusion how to remove the cover. You'll see there are pins on opposite sides that need to be compressed to easily release the cover. If you have not distributed keys and only use smart electronic access, you don't need to remove the cover over the key slot.