[Samba] About s3fs in samba4

[felix at epepm.cupet.cu]

Reading Whatsnew.txt in samba I understand that If I use s3fs, as it is
set by default in the provision step, I won't be able to modify GPOs
later, right?
So I have a couple of questions:

- What's the advantage of using s3fs over ntvfs in new installations?
- If I'm planning to deploy a new Domain, probably needing to change GPOs
later, should I select ntvfs???

Best regards,
Felix