This was my first experience with Zachary's Chem-Dry. I had an empty house, and I wanted to get the tile and grout cleaned before I did any more work to it. The people were very nice, and easy to work with. I gave them the garage code over the phone, so they could let themselves in to do the work. So, the customer service was wonderful. But, I was a little let down about the actual work. Maybe it was just my expectations, but the difference in the grout between before and after was just not as stark as I hoped it would be. I thought it would be a lot lighter colored.