I am using a rented a7R II and SAL70400 with the adapter from A to E.
On the a7R II it works pretty well but does not support DMF focus mode. I can live with that but not very happily.
Today I tried the lens + adapter on my a6000 and it tried to autofocus but really could not do it. I tried both full auto and limited auto and it simply hunted.
Since I had never read about that I decided to tell all of you what I experienced.
FYI only.