This is what I saw at this dealership yesterday. The cafe seemed to be a break room for employees rather than a service for customers. In the hour or so I was there one young man made three stops. I say a break room because more than once I saw employees open items they got so clearly they weren't getting something for a customer. The young lady in the picture spent all of her time on her phone or sitting with her feet propped up on the drawer. Not very sanitary.
There was nothing that I could see that makes this more than a self service area. Maybe this young ladies talents could be better utilized elsewhere and maintain the look of class one has come to expect from Mercedes-Benz.