Light colored old carpet in small house. High traffic area wear. First round, I was not real happy after the carpet dried, I could see swirls from the machine. I called on a Saturday, call was returned first thing Monday and no problem, sent another truck to "fix it". They did perfectly and the problem was handled with a smile. They are polite and professional-very reasonable price. Two hours drying time is not realistic....it really took 4-6 to get completely dry.