I have used Clearwater Systems Akron, OH for over thirty years now for my soft water and drinking water needs, and I have almost always had very good service. I've been having them come out and replace my cartridge filters throughout the years, and I've never had any trouble, except for one time. I made an appointment to have my reverse osmosis filter changed, but the time frame they gave me passed by and no one showed up or called. I reached out to them and they told me that the service tech would call me back, but after another hour I called again because he never reached out to me. I asked for a supervisor and spoke to the manager who was already home. Despite that, I told him my story and he immediately got on the ball, apologized for my situation, and the next day sent one of my regular service techs to take care of my filters. He did a good job! Most of their service people are excellent, except for that one that never showed up. I still highly recommend them for their water softening and drinking water systems, and would absolutely use them again.