He'll adjust to match Ertan's pace easily enough; both of them are significantly slower than ninja even at a leisurely pace.
The guest-house is nice, of the same twisting, organic wood as the rest of the village. It's more apparent here - it looks grown, not built. The rooms they're led to aren't the nicest available, but are comfortable and quiet enough, and there's warm food and clear water on-site. There's no glass or metal anywhere in the construction. Screens are of wood, and the interior walls are wood and paper. Presumably, if it starts raining hard enough to get past the overhang, you're supposed to close the shutters.
They pass a few people as they walk, who all bow or nod their heads to Tobirama, and either ignore or briefly glance at his companions. Tobirama doesn't stop to talk to anyone.