I think it's the right section. I don't see where could be a better place.
To answer a bit of your question, this game don't seems to take that much bandwidth. Also, I can play at public places without any problem on my tablet and phone but even at home, with a good internet speed, if I try to play with my PC, I can't do shit.
I think the best way to have answers to your question is to test it out by yourself for a day. We don't know every specific of your situation so it's hard to tell. And i'm sure you won't have problems by playing only a day, PokeMMO is not that huge on bandwidth for what I can tell.