Yeah...I've got the 4 HD's on my '85 190E. They're a tad stiffer than the stock/comfort shocks. On the highway at high speed they keep good contact with the road whenever there are dips or bumps. I've got such a HUGE gap between the fender and tire that it looks like a 4X4.
Now I've gotta cut the springs or get a new set of lowering springs. Actually, I'm gonna wait until I get a new set of rims.
Thinking back, I wish I had bought sport shocks instead.