Just a heads up for anyone with the adapter or contemplating purchasing one for the a7RII - At this time it appears that the adapter does not support the a7RII.
The adapter will attempt to AF but will only hunt and stutter. MF works fine.
Hopefully TechArt will provide a firmware update that restores (and maybe improves?) the AF function. Until then, buyer beware. Current owners should send them an email requesting the update.