Just recently had Tiger Mechanical come out to my Dads place. He had a cooling problem on his side by side refrigerator. They diagnosed the problem and fixed it right away. They gave a time they would be there (between 4pm-7pm) and they kept their word. There was an $89.00 service call fee to come and diagnose and to give a estimate.
If you choose to have them do the work the service call fee goes toward your repair. The total came to $425.00 and I believe they changed the control panel. The control panel controls the motor for fan and defroster I believe. And the evaporator coil was frozen over so no air was getting to the fridge side. All in all my Dad thought the service person was courteous and polite and had a fair estimate.