Try and look at
things from the perspective of a long time MS office user and you'll
understand what I mean.
I myself use LibreOffice / Claws mail /If you are looking for the work to be done that is possible in OOo and
Thunderbird. I'm speaking about normal users, you know? Those who
don't care about FOSS and stuff. People who just want to get their
work done, and fast.
I would like to suggest some thing you may not like: try googling
something like, "openoffice sucks" or "why I hate openoffice" or
something similar. I know that most are mere nonsensical rants and
that many problems stated would have already been fixed in
LibreOffice. But then, see what they mean when they say usability /
ease - of -use / interface etc. I find LibreOffice pretty usable for
myself. Convincing people is a nightmare and I'm trying to do just
that.