I have an old heat pump, and Miller's Heating & Air has helped me in keeping it going, which is good. The service tech that recently came out was excellent! He did a good job of explaining things and keeping me up to date on the situation. He swapped out the motor in my heat pump, which had burned out. There is also a breaker issue which they will be addressing soon. I've been using them for a few years now and will continue to use them.