my couple pennies: my car is survivable doing the commute across LA every day with these, and i'm tucking a little in the rear, 1 finger... barely in the front. I was a little hesitant to leave it that low, but I went ahead and took it for a test drive before insisting they raise it up... and i'm so glad I did. i've scraped once at a dip that had most of my other cars scraping at stock height if I mindlessly went through it.
the suspension *is* stiffer. it does remind you of it, but in a good way. everything about driving the car is more confident now, and those stupid little things that would get the back end bouncing no longer seem to unsettle the car.
--adult sexy chef costume-- alright, why my wife just said that...
for *my* use the stock springs are working out great. I cross LA daily to get to work and back. The roads are horrible, my ride height is right about an iphone and change, and I'm doing just fine
one huge disclaimer: these give you a little bit of a superman complex. try not to kill yourself doing something stupid haha