I bought my Bluetooth Kwikset when they first became available. I am an early adopter. It was simple to install and easy to setup. At first, my Kevo app had to be running on my iPhone for the lock to lock and unlock. But Kevo keeps updating the software. Its better and better. Now, it works great. And I don't need to start the app for the lock to work. Works great. I would buy this again and again. I've recommended it to a couple of friends and they bought one. They think I am so smart for showing it to them.