I've had no trouble on Giant Earth Map (230 x 115) at prince, king or emperor level.
The civs are doing fine: fighting amongst themselves, building multiple cities, attacking and
taking city states, exploring the whole world, developing science and culture, as I expected.
Same (except only paying Prince). Current game as China on v. 7 I'm seeing multiple civs with pretty big empires.
Would be nice to give England's cliffs some food/shield value too. They are short on space as is.
Tile in France for Mont St. Michel please, if you get a chance.