I've been running my Functions for almost a year now and have absolutely no complaints. I was one of the first S14's on the street with them back when the Version 1's first came out. I have the 7/5 rates. Great for street, good for canyons, havent tracked on them yet. I'd probably get stiffer rates for track though. Camber plates are great, havent slipped/lost setting ever since i adjusted them, and this is with hitting potholes on 18's daily driving
Long story short, you wont be dissapointed.