I will also mirror everyone's sentiments about the Shi
mano CB110-E. Its a good hub, and if you look hard enough, there are simple modifications that anyone can do to make it even better. All this considered, a coaster hub is pretty much a hammer. If you got one and it is serviced correctly, and living in a flat area like you say, I think that ANY coaster hub will do ya.
Check this out:
https://vimeo.com/133813843