This is a deal breaker for me if this lock doesn’t work 
I see that they have added to the app but it does say they didn’t have a lock they could test with so there may be problem.
https://apps.athom.com/app/com.yale.lock
There also seems to be an issue with using the app that it is draining the battery of the device as well.
And as far as I can tell the app seems dead as the dev hasn’t responded since April.