I've had my 2008 Sonata worked on at Gary Mathews before.; I was extremely happy with the work done and the people I came in contact with. Naturally, when it came time for scheduled maintenance I wanted to contack Gary Mathews firest. Thier website lists thier hours as opening at 7 AM I tried every number I could find and always got a busy signal up to 7:30. They had not responded to my email by that time either. Other than this, a good place.