I purchased and installed my new lock a couple of months ago and it is one of my favorite smart home devices! It was very simple to install, got to keep our existing keys, and works like a charm. I use the Auto Unlock feature and every time I come home with my arms full of work gear and other stuff, the door is always unlocked and ready for me to open... no more fumbling for keys! It’s connected to my Alexa devices and can simply lock/unlock with my voice or use routines to lock before bed, etc. There are many great features and benefits to this lock, I could go on for quite a bit! Long story short... get this lock!