I grew up in the back seat of coupes in Europe. My father never owned a 4 door until I was 16. The coupes didn't seem like a hardship to me then although I probably wouldn't want to crawl into the backseat now. There's lots of room back there for kids. I think all MB coupes are beautiful cars that hold their value well and can be quite practical. Excellent travelling vehicle for a couple.
I'm keeping my eyes open for another one as my wife's toy.

Jorg