Re: cluster fuck of a "Ribbon" UI
+1 for that. I have no problem with folk liking the ribbon, just mighty pissed off that we are given no bloody choice in the matter.
I often use LibreOffice and its great, but rarely follows the document layout in .docx in my experience, better with .doc
Office 2003 + 2007 compatibility sort of works, but often it borks on newer .docx in my sad experience.
Office 2010 is not that bad, so I tend to use if if I can't handle documents in older versions, or simply to convert to a format that is better parsed.