They pick up the phone every time I call. They set up an appointment to come to my home to repair my unit on the next day. They communicate with me right away about the timing of technician. The technician has very high experience and can explain a few similar cases to ensure that I understand what it will be involved. The home office is so supportive as they explained very clear about steps, procedures, and time of ordering parts. They are very patient and accommodate all your inquiries. At the end, they provided the best alternative solution and they act upon it right away after agreeing. This is absolutely creating a win-win situation to all parties involved - owner, repairer, warranter, and manufacturer. Most importantly, they act promptly and educate me. Therefore, it is quick and I did learn in case of the future needs.