I have them and they're great except for a couple of little things. I have a little bit of a knocking when I go over sharp bumps once in a while. Don't mistaken this for the front end popping TSB noise which I had corrected before installing the springs. When I did the springs I was in a little bit of a hurry and I didn't glue the lower isolators to the springs. I believe that the isolators moved a little and something now hits the lower perch causing the knock.
The ride quality is great and i've never bottomed out on any speed bumps or driveways.
The second thing is that when going over expansion joints at 75mph or higher I find that the shock valving is a little too soft and the car pogos over the bumps. I am planning to install the Tokico D-Spec shocks over the winter anyway which should alleviate the problem.
Pic 1
Pic 2