I absolutely love my smart lock. It has auto-unlock when I arrive home after leaving the neighborhood, so I never have to use a key or a phone app. It also has a key pad, so if my phone is not on me or is dead or whatever I can still punch in a code. And I can both check the lock status AND door open status anywhere I am in the world if I have wifi or cell data. I can remotely unlock the door to let in my housekeeper if I am at the office without giving her a code. I can also lock it when she leaves.