Very happy with the tile and grout cleaning. Matthew called ahead to say he was on his way which I appreciated. He showed up and informed me the grout might need to be pre-treated and there would be an additional cost. I anticipated this based on the low cost of the Groupon (they always try to upsell you and the Groupon included a disclaimer about a possible increase if the grout is really dirty). I wasn't however prepared for the cost - an additional $200! We discussed it and he offered a price of $150. Based on my research of the cost of this kind of cleaning, I knew that was about right so I agreed. He pre-treated the grout and let the mixture soak for about 5 minutes, then cleaned the tile and grout. What a difference! It was night and day! My only complaint was that the water is left to dry on the tile. It should be sucked up. I ended up using a towel and shuffling around to soak up the water. Other than that, the overall experience was as expected and I would recommend Excel Floor Care.