i know this is going to sound weird, but here goes, wagon, i agree with you
whew! that was hard lol
but seriously, the Ground control coilover sleeves are just that, sleeves, they fit over the strut and have tiny ass springs which is how they lower your car so much, but to keep your shock from bottoming out constantly they make the spring incredibly stiff so your ride is def. not going to be comfortable on less then perfect roads
they also take away from suspension travel, which isnt too good, and it increases the risk of blowing the strut out
i have them on my car, i like the way they make my car look, but i can imagine the ride with coilovers would be much quieter and much smoother