Excellent! Marchin did great work. He buffed out all the surface stains he could find on the countertop before cleaning and sealing it, and with a limestone countertop, that takes a lot of work! He also touched up some sealant in the seams around our various countertops and sink, just because he could see that they were getting old/cracked. Throughout the process, he was conscientious and careful, and we will definitely be using their service again!