VERY expensive and really, just mediocre service. Had to have the tech come to the house twice for tile and grout cleaning. The first tech did a very poor job and when we contacted Coit about the poor service, the wanted to argue - saying that the tech was one of there most senior employees. Senior is one thing, compliment is another.
Anyway, long story short, the second tech did a good job but said we may need to have this done every 6 months. At $1100 (this was with a 40% discount too), I don't think so. My neighbors across the street had a company come in to do their floors for $147. WOW! Was I ripped off?