These units have been installed for over a year now and have worked well...

Except: Needs range (or single strength) improvement. Example - if phone is inside a purse or bag. It will take longer to operate the lock!

Security: 10
Single strength: 5
Ease of use: 9
Battery usage: 9
Style: 9
Ease of installation: 7 (with no previous experience),
9 (with previous lock experience)

A great improvement would allow the Bluetooth to connect to a wifi hub!!!