I had done an evaluation when we were building the pool, and Anthony & Sylvan built the pool, and we went right into having them service it after we built it. We were happy with the service, so we stayed with them. We use them for everything-- the opening, closing and weekly service maintenance. The people who have come out are very courteous, professional and knowledgeable. I speak with the head service guy who comes out to our house on a weekly basis and he tells me everything that's going on, any concerns he has, anything that he would like us to focus on, and then tells me when he's going to be back. We're very pleased with our pool professional, Keith, who treats the pool as if it's his own and maintains it in that fashion