Ext4 is worth it if only for extents (and preallocation, sadly under used thou), and multi-block allocation, to prevent tail fragmentation, ext4 has some pretty big wins, to tide us over, until we have a stable post 90's filesystem.
The OODoc is almost certainly a bug in Openoffice/Libreoffice where they have expected the semantics of ext3 data=ordered mode rather then being agnostic. Thou you would assume, that hitting the save button would imply an fsync, autosave I could understand not.
And a Lance Armstong bug, that made me actually lol