I've been using #OpenOffice for years. I finally took the plunge and installed #LibreOffice since, from what I can tell, OpenOffice hasn't had a major release in almost a decade.
I checked and all the features I used in OpenOffice are still basically where I expect them. I just need to adjust to the new toolbar icons. I'm sticking with my more traditional toolbars and menus.
Ability to easily set heading styles could make some of my RPG-related documents much easier to arrange.