A question about ZFS built-in SMB

[Quartz]

Assuming the following:

- A server running FreeBSD 10.1

- A ZFS pool with no restrictions on how it can be set up

- Clients running Windows XP/Vista/7/8

- The need for a "public share" with two main directories, which we'll 
call 'stuff' and 'dropbox'. Anonymous guest users have read/write access 
to 'dropbox', and read-only access to 'stuff' as well as being 
restricted in which files and directories they can even see there. 
Admin-class users have full permissions and visibility to both directories.



Is installing Samba still a requirement, or is ZFS's built-in SMB 
sharing complete and robust enough now to be able to handle everything 
natively? (Alternatively, is SMB itself even still a requirement or are 
there other options these days (that don't require installing software 
or custom configs on the clients))?