I've got Eibach Pro-kit springs mated with KYB AGX shocks. The springs provide an excellent ride and significantly reduce body roll in the corners. The car handles much better.

However, the pro-kits drop 1.25" at all 4 corners. Since the front wheel-well is cut slightly higher than the back wheel-well, this results in the front end looking slightly higher than the back and having about 1/2-3/4 of a finger more gap. While this didn't bother me at first, after having the springs on for a year and a half it annoys the hell out of me.

A friend of mine came to me for advice, and i recommended he get the H&R OE sport springs. I think is drop looks significantly better than mine. (I think they drop 1.75" front and 1.5" rear). His ride quality and handling is about the same, it just looks better. If I could go back in time, i'd get the H&R's. They're significantly cheaper, too.