I have the goldline springs and I love them! They give the car a great look, and they are good quality. I thought I might die with the bumps, but as long as you cut the factory bump stops the recommended height then its a pretty much smooth ride. you can check out my car at http://www.cardomain.com/id/agular9
I've got pictures on there with the springs on if you want to take a look. I run 18's on there with a 40 series tire, and I have no running, if thats a concern at all.