We selected WaterCure USA after reviewing interviewing 3 other companies. They were thorough in both the water testing and their working knowledge which has proven itself invaluable to us. The water system has performed beautifully leaving us worry free with excellent water. The annual follow up service has always been at our convenience and the techs are knowledgeable. The Keurig Coffee maker had new worked so well. hard water is a thing of the past.