We have been using Amazing Heating & Air Conditioning, Inc. for about three years now. They took over for another company, and we continued to use them. We haven't called them out for repairs, but they come out and do our annual check-ups, and they do a fine job. It isn't really all that easy to set an appointment, but we continue to use them, so it really isn't all that bad either. They do come out when they say they will, and they perform the work in a timely and professional manner.