Aire Serv of Mid Missouri was very professional and very, very timely because I called them and got an appointment that same day--and they came out and diagnosed everything very quickly. They put the parts on--because they had the parts on hand--and had everything up and going in about an hour and a half. The technician, who had to replace two capacitors on the air conditioner, was friendly and very knowledgeable. He gave me some advice on how to keep the system serviced so that it could operate more efficiently.