I second the motion, John.
I appreciate excellent "one-make" garages / technicians for the expertise they have acquired over the years.
Perfect examples are techs that help out us "knuckleheads" on this site, like Stevebfl, Benzmaz, M.B.Doc, et. al.
I wish I could find a good technician like Stevebfl in my area. I would gladly pay a premium for the work he does.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".