If you using local color in an unobtrusive way, it is all for the good. But if you stress it, the whole thing is artificial. But it should be used, I mean, it's not forbidden. But you don't have to stress it.
Jorge Luis BorgesOn the floor, and hanging on to the bar, squatted an old man, immobile as an object. His years had reduced and polished him as water does a stone or the generations of men do a sentence.
Jorge Luis BorgesThe worst labyrinth is not that intricate form that can entrap us forever, but a single and precise straight line
Jorge Luis Borges