I follow the btrfs development because I'd love to have at least the features of ZFS on Linux. However I would not dare (yet) to use it as a replacement for my current home fileserver (which owns ALL my data).

Does btrfs provide cifs export like ZFS ?

Edit:

from the btrfs wiki https://btrfs.wiki.kernel.org/index.php/FAQ#Is_btrfs_stable.... :

Is btrfs stable? Short answer: No, it's still considered experimental.