This will tell you if the door is locked/unlocked. Not open or closed. And I sorta don't trust this feature's accuracy. If someone locks the door with a key, then I unlock it with my phone/hand, the system isn't really sure what state the lock is in until you lock it again. Maybe this is a ME thing, but I feel as though it's across the board.
A pretty cool feature will tell you WHO opened the door and at what time. This is great when a security camera is on that locked door for matching time stamps. Everyone can have their own email setup on the app, and you can grant privilege to whoever. Certain times... Even guest modes. If someone is staying over and is heading out, they tap the lock a few times (I think 3) and it'll lock. They can't get back in without you, but whatever. Additionally an autolock feature can be turned on where after x amount of seconds, autolock. Simple.
My apology for the over-explanation of this product.