We have a 3br 2Full Bath , open living, dining , kitchen concept. Its one floor & There is carpet, EVERYWHERE except the kitchen & Bath rooms. It was annoying at first, but got used to & accepted it. It was a Brand new place, no one else's dirt, but after 2 yrs & a toddler, its seen better days. We tried everything.. Probably more than everything.. to get the winter dirt/slush & rain mud, juice, baby spills, spots from other cleaners & whatever else that was in there! My husband found this machine. I procrastinated a bit because of the price. But... Finally caved in & bought it for an upcoming party for the Mayweather fight. I was skeptical & told him if it doesn't work its going back! Well...needless to say, I'm now buying accessories to protect it. I love it! Worth every single penny. You just need patience to slowly go back & forth...its something you can zip thru on the first time. Again, well worth it.