I usually like to wait while my car is serviced. Jay Wolfe maintains an excellent waiting area. It has comfortable seats, wifi, bistro bar. It's almost like being a part of an exclusive club.
That actual servicing of the car goes smootly. If there are problems, they let you know right away and are prepared to discuss the alternatives.
Given that I never _want_ to go through the hassle of getting my car serviced, the people at Jay Wolfe make the experience as painless as possible.