I called at 12:15 pm, and an actual person answered the phone (!). Abdul was at my house by 2:45 pm that same day (!!), and he figured out the problem quickly and fixed it. I asked him a million questions, all of which he answered. He gave me some maintenance tips, and I felt like he was being honest and straightforward with me. He was very polite and very respectful of my home. The fee for his time was very reasonable.
He did the exact same thing that a previous repairman did a few years ago, but in a single visit of less than an hour. The other guy took two (long) visits over two days to suss out and fix the problem. This is not ideal in Raleigh in July. Abdul had the capacitor for my AC unit in his van, which the other guy did not (after a trip to the warehouse/store/wherever, he cobbled together two capacitors, which worked fine). I actually called the other guy first, but he didn't return my call in a prompt fashion, so I called Air Quality Heating & AC Repair based on the reviews I saw here. I'm glad I did.