I have a yard that holds water & mud. Also I have 2 120 lb. Golden Retrievers and a doggie door. They come in out of the yard with water & mud. So there are mud tracks all over the house. The Symphony does fairly well. The re-usable pads get dirty in no time, the disposable gets dirty too. But it is whole lot better then using a broom & a Swiffer or a mop.