A clean install of 10.13.3 , first time on APFS. Installed everything as before, and I rely on the custom made Clover from Unibeast and Multibeast, that supports APFS. I have noticed some differences (in Time Machine or in the shut down process). I wonder now if this was a smart move. I have not moved yet any apfs.efi manually. I suppose that, if I update to 10.13.4 (When it will be available, I shall be able to recreate the Unibeast pen drive as usual. Updates were smooth, on hfs+, lets see if it is the same on apfs. I suspect it would not change much from 13.3 to 13.4.