The smart lock is easy to install and use. The fingerprint sensor is a bit of a hit and miss but it doesn't bother me too much. The pin code is quite easy to use and setup too.
If open or close has a notification sound then it would be perfect to make sure it has actually has locked it or unlocked. Otherwise, great price for a great product.
Please remember to restart the lock after you put in the battery, mine was showing low battery even i put in new batteries. (Push the button at the bottom of the lock below the keypad to restart it). Lots reviews and Youtube video to help you solve the problems.