Alon,

I have all my work service done by the local MB dealership.
My service advisor, or representative, is a long time employee there. He also happens to live in my area. I live about 30 miles from the dealership, so he shuttles it back and forth and leaves his MB if I need it. I am quite satisfied with him and the service I get. I have never had to just drop in or get towed to a strange dealership.

What I appreciate most is the visual inspection the car gets from the techs and having him drive the car to feel, listen and sense things I might miss.
Last time, for instance, they noticed a wee bit of oil leaking around the front crank seal. Told me to keep an eye on it. When he has the car and things come up which were unexpected, he always calls me to discuss before going ahead. Things like a flex coupling for instance. It's wearing out, should be replaced, cost is... etc.

Now I'm in an old 300CE, pretty low on his client food chain, as far as the car goes. But he doesn't make me feel that way, and that's important.

All together, the experience I have with him is very good. And he is my only POC with the dealership.

Good Luck.