Ooo/Libre Office can't save on remote share so I think it is a huge disadvantage
that's why we need a capable office suit until the libre office developers solve it. This problem does not occur in a gnome desktop because gvfs works on a different way. Maybe the KDE developers won't change the KPart functionality for libre office only but we need a solution.
KDE has its own office solution. not as feature rich asLibre Office but not bad at all AND can save on a remote share in KDE.
I think this requirement is common in the year 2011 so at the end Libre Office should fix it. But intil it we need Koffice.