The 6" hand-held random orbital polisher/buffer-type tool that I supply primarily as a stair carpet cleaner I've found also to work well as an upholstery tool. Others cleaning upholstery strictly via a low-moisture process use a rotary drill version of this for upholstery, but I think orbital trumps rotary every time. Others who use low-moisture equipment for carpet cleaning also carry a small portable HWE extractor for cleaning upholstery. So, as you see, there are many choices in this area.