We have been with Miller's Heating & Air for over sixteen years now, and we've never had a problem with them! They always send someone out when we have a problem, and they always call to let us know when we're due for a checkup, which is why they were out here about ten days ago. They showed up on time in order to do some maintenance work on our air conditioning and heating system, and everything checked out well. It was very easy, and it went really well. They're a good company and I will continue using them, as I see no reason to change!