Budgetary issues have held up all car modding at the moment...
The springs if you look at the rates are fairly gentle on light bumps and don't jar the ride at all, but since they are progressive, you will feel the really big bumps.
I didn't change anything else, since my car has the brembo package, it had stiffer springs to begin with and different damping rates on the shocks/struts. It's not bad, but I will likely get under the car and try those Koni's that everyone talks about. Not in a rush to do it at all though.