This is the new August lock. The older one was fine, but large and a little clunky. This one is much smaller and very smooth and tight once I got it working. I would heartily recommend it to anyone looking for a smart lock that will open when they approach from the outside and automatically lock the door behind them after they leave. It makes a pleasant sound to announce it is working. With door sense it will let you know if you forgot to close the door all the way (alas it cannot close the door for you; you will have to ask someone to go by and pull the door closed. The installation instructions could be a little more helpful; this lock comes with several pins for turning the deadbolt, and there is not guidance on which one to use (or I didn't see it). Once that was corrected, though, the lock works like a charm.