We have been doing business with Quality Refrigeration Services since about 1999 and have never really had any issues with the service they have provided us. We have primarily worked with one technician, Howard, so we always know that we are in good hands when he comes out. We primarily use them for service/maintenance on our heating and air units. They are very reasonable about timing if we call them up for a service date but also will be here in a couple hours if it is an emergency. Howard pretty much never makes any mistakes and gets things done correctly the first time around. I would highly recommend their services.