Firebird,
I had the yellow Konis on my car for a while, along with red Eibach pro-kit springs and 17" Teledial wheels. The combo resulted in harsh ride and very poor handling. Suspension travel is reduced (less bottoming out problem) but the car didn't feel that well planted. I couldn't find a good compromise on the Koni adjustment, and removed both the Koni and Eibach a while ago.
I still have another set of Koni pairing with Sachs springs on the SW. IMHO, it's still better than above, but still shows some harshness on poor surfaces.
As David said, that picture is misleading a bit. If you can make sure the springs are matched to the dampers, they should be quite alright.