[greentrbo95gst]

H&R is not exactly a brand new company out of Taiwan. They spend a ton of money on R&D to make sure every product they develop improves the handling of the car. Did you forget about lower center of gravity to weight ratio?
A simple formula will prove your statement to be off. CP M5's use the almost the same spring ratios that H&R offers along with being 10mm lower.
No point of hating on a product without really knowing.

I know what you mean about KW's or Ohlins, but can't discount a simple good spring developed by a good company.
I use Bilstein PSS10's along with H&R sway bars, stiffer bushings all the way around on my E46 and yes its handling is night and day, but OEM shocks on a E46 do not compare to OEM shocks on a f10 m5.