It's definitely noticeable being lowered on anything IMO..however I never upgraded struts so idk if that'd make a difference..I'm about to be on coils and be away with the springs..as far as appearance, it's the best you can be without coils. Maybe eibachs will lower more, but then it's more harsh.
I have the DNA springs still on the front and ssc in the rear since the DNAs didn't put me where I wanted to be. Ssc fronts will be pretty much the same as these.
Untitled by grandprix06gt, on Flickr
also read all this..
http://www.grandprixforums.net/showthread.php?t=28165