It was extremely easy to install and works fairly well... Locking/Unlocking from my watch is sluggish taking up to a minute or two standing there just waiting. I particularly love the Auto-Unlock feature however, I work so close to home that it doesn't even sense me "away" so, I have to manually set it to "away." I wish there was a quicker way to do this vs having to go through settings and require multiple layers to get to the button that let's you change your status. Other than that, it's been great - I've unlocked for deliveries and I have peace of mind it will be locked after.