Fly Safe,
I commute from Europe, and I like the 20/10 roster. The roster will change during your 20 days, but who cares really, if you are here anyways.. Days off in Addis: dont expect many more than the bare minimum. Hours: on 787 you basically fly your butt of. 100 hours a month is not at all rare. 787 flies both Africa, Europe,Asia, and the US, Sorry that I cant be more detailed than that, but Im on a different aircraft.
Tricia....today is the first time that I've heard of Expat FO's. I'll try to find out more on what it's about...now heading home for 10 days off :-)