Bought the product following the arrival an active dog that was tracking dirt everywhere. Couldn't keep up cleaning the floors on my knees. Although the Symphony wasn't recommended for unsealed hardwood floors, we decided to give it a try. After 2 months of use we are very satisfied. We have successfully used the Symphony on tiles, weaved carpet and oiled hardwood floors. There doesn't seem to be enough steam to affect the wood grain in the floor. We would of loved to try the Crosswave to compare, but how ?