Excellent! No two hour window! Mark said he and Joe would be there at 8:30, and they were right on time! During the refinishing, Mark explained exactly what they would be doing and it went just as he described. My wife and I were going to spend several thousand dollars to have the shower remodeled, and were prepared for the long process of tear out and new construction! The shower is awesome and with the money we saved, we are having our guest bathroom refinished and then we will have the floors done.