Their technician, Kevin Arnold, was one of the most knowledgeable technicians I have ever had service an air conditioner for me. He adjusted the TXV valve which I believe has solved an ongoing performance issue I have had for years. No one in the past has ever either taken the time to look into that or know that they should. Too many companies handle their A/C tune ups just as marketing tools to find obvious problems they can charge to fix. Kevin was also very good at answering my questions and explaining what he was doing and why.
