My experience with Miller's Heating & Air was pretty good. They have items like filters in stock whenever I need them, and when they need to come out, I get scheduled pretty quickly. This last time they came out to do a whole duct cleaning job, and they did a good job. After they got that taken care of, they did a little something else for me. There was a hole in a vent that needed to be patched up, and once the tech got approval from his boss, he went under the house to patch it. I know I'll need to replace the vent soon, but they did a nice thing in providing me with a temporary fix. I have a yearly contract with them, so I will be using Miller's again!