Hello James,
full format sensors usually have better image quality (e.g. less sensor noise and less "bleeding" between pixels). For close-range applications they are often not advantagous because at the same field of view (larger sensor in combination with a longer focal length) they have a smaller depth of focus. For facades of buildings, air photos etc., full format sensors would be preferable, for close-range applications you'd have to find a compromise between image quality and depth of focus.