The Level Lock - Touch Edition Smart Lock - Satin Nickel is quite simply the smartest smart lock that exist. I have been looking at replacing my old deadbolt with a smart lock and came across with the Level Lock - Touch Edition Smart Lock - Satin Nickel. I read the specs for this lock, and I was convinced. The smart lock is effortless. All you need is a smartphone, and you can unlock with a card or touch. You can also use your phone voice or a regular key. I love you can also invite friends and family, create guest passwords. My favorite feature is that you can unlock your door as you approach your house. You can also hear audio confirmations when someone comes and goes. This smart lock is a must have for anyone who wants to enjoy the modern comfort of technology while keeping their home safe with a deadbolt. I highly recommend it.