We love our August lock. It's very easy to use and I love that I can get notifications on my phone for when our door is locked and unlocked. We did have to purchase a new deadbolt for our door that coordinates with the August mechanism and we are considering adding a wifi signal booster to our cable package so that the lock does not lose signal as often. I'm taking away one star because of the unforseen additional expenses, but overall very happy with our August Lock!