Communication was excellent, it was easy to set up the appointment, and although they were late in arriving, they called to advise me they were running behind. A little background...I was considering replacing the slate tile in my foyer as it is original to my 1970's home and is a bit outdated. The tile is in nice condition but the grout looks really bad after 40 years of service. I have tried to clean it myself but my efforts have not produced a satisfactory result, so I thought that if I had it professionally cleaned it might look nice. Kevin arrived and brought in all his equipment and spent quite a long time chatting. Once he finally got started, he worked on a small area and advised me that the grout had been sealed and it would probably not clean up very well using his process. He uses a small pressure washer type device, and I think he was using hot water with no chemicals or cleaner added. That small area that he worked on looked much better (not great but much better) than the rest of the floor. We talked about options and he said that the floor really needed to be stripped, cleaned and resealed. He said he was unable to perform that service as he did not come prepared for stripping, but he did quote some prices which were very close to a DYI tile replacement. Given the cost of the attempted upsell, and that the small area he had worked on looked much better that the rest of the floor, I asked him to go ahead and clean the remainder of the floor, and I would hope for the best. I speculated that he would spend the next hour + cleaning, but in what seemed like a few minutes later he announced he was done. When I looked at the results I could see no difference in before and after. The small area he had first worked on looked much better, but the remainder of the floor still looked really bad. I pointed this out to the provider and he said that the sealer in that small area that cleaned up fairly well must have been much thinner than the rest of the floor. It was pretty clear to me that the small test are came clean because he spent some time cleaning it, whereas the rest of the floor was gone over quickly, with very little effort or time put into it. After he left, and the floor had dried, there were dirty footprints, and dirty marks from where his machine had rolled across the floor. I had to take a mop to clean up the mud that he had left behind. The bottom line is although I had no expectation that the tile and grout would look like new, I was very disappointed in the end result. Not only did the grout look terrible, with the exception of the first small are he cleaned, but I had to clean up the mud from his boots, and the wheels on his machine after he left. Overall a very disappointing result. After thinking about it, if he had spent less time talking, and more time cleaning, I suspect the result would have been much better.