Have only used it once, on a floor that is almost 20 years old. The floor is linoleum and has a lot of texture which captures dirt. It is a light color, grey and white and I really like it so I didn't want new flooring but this was so dirty. The Powerdash Hard Floor Cleaner did a very good job of cleaning. I had to go over each spot several times but it was worth it. I only wish the brush bristles were a little stronger. Overall, very good and easy to use.