I bought an August Lock a year ago than later bought a Connect.
Had several issues over that time with the lock. 
In some cases it would fail to auto-lock because of a door misalignment and never notified me there was an issue closing the lock.
A few times it simply failed to connect to my phone so I had to use a key. 
In other words a cool gadget but not serious enough yet.
Connecting to Bluetooth takes a long time. 
Auto-unlock doesn't work reliably.