I originally purchased this lock as part of the "Amazon Key" kit. The "Amazon Key" kit was terrible due to a poor design and crummy camera. The "Amazon Key" design forces the Yale lock to connect to the Amazon camera ... not your Home Automation system !Even though I was disappointed in the Amazon Key system and sent it back for a refund, I fell in love with the Yale Lock. It was easy to install, looked really good on the front door and operated better than a Schlage or Kwikset.So, after sending the "Amazon Key" kit back for a refund, I ordered the ZigBee version of this lock. (cheaper than the Amazon Key version too !).Connecting it to our SmartThings home automation system was very easy. Programming the lock was also very easy.I really like the voice menus ... they make setting up the lock, entering user codes and setting options simple. Each time you press a button while in program mode, the lock speaks to you and helps you through whatever option or setting you are trying to change. I easily setup multiple user codes and configured the lock to automatically "relock itself" 60 seconds after unlocking.The SmartThings integration works well also. Not only can I lock or unlock the door from anywhere on the planet, I can instantly see the if our front door is currently locked or unlocked. It's also easy to set up notifications or text messages anytime someone unlocks the front door. SmartThings even tells me which lock code was used. I just wish that I could program user codes from the SmartThings app. From looking at the SmartThings device handler ... the Yale lock supports remote programming over ZigBee .. it just hasn't worked for me. But ... that really is a minor Home Automation issue and isn't a problem with the Yale Lock. I still give this lock 5 stars !