I do love my Crucial Springs. You might want to couple them with something better than KYB AGX if you do decide to go that route though. I have a theory that even on the highest setting, they aren't dampening enough which I only notice when I get 1st gear wheel spin coming out of a corner (AutoX issue only). Observers see my front inside tire hopping since I switched from the Eibach Prokit to Crucial (both on the AGX's). I did add a little power too at the same time though so who knows.
Other than that minor issue though, Crucial>Eibach.
I'm considering Koni inserts, Tociko D-Specs, or maybe even STi take offs for the future.
BTW, I have a set of Eibach Prokit springs for sale in the Classifieds section.