I was impressed with the system and happy. We have tile floors and carpet. while this doesn't work on the carpet areas, it does great on the tile floors and I only had to add water once when I made it to the bathrooms. But I have an 1900sq ft home.  I did use both pads as the get pretty wet. But then I just have to throw them in the washing machine to get them clean again. I also left the vacuum on the whole time to pick up whatever what on the tile floor. Usually I have to sweep, vacuum, then mop & still manage to get hair on the mop. So, this was nice to get the job done once.