Seen them, but never driven in them. 600 is a very good price! especially if they're new. Any full coilover/ damper is good for 600 dollars. as long as it isn't some bogus no name company. Apex is very good. I am running the illumina's with ground control coilovers and it rides very nice with a moderate drop. It's all up to you and what you plan to do. Both will work nicely, but just remember that the springs aren't adjustable, so if you want a different ride, you gotta buy a whole new setup. with the dampers, you can change. Just something to think about. Good luck