500km on it now, still being gentle on the clutch, but, some thoughts. Its hard to break up whats doing what, since did so much at once - But
Turn is night and day difference. It feels agile AF. The front end is so much more reactive, and you can feel the extra camber. Body roll is minimal, significantly less than the M sport sway bars. Gokart is a bit cliche, but Gokart.
The ride is different, hard to say if its softer or firmer. It is MUCH more compliant, but can now feel the road. Its like its deleted the potholes, but left the road behind. No more crashiness, however the assometer now senses the pebbles.
Back end feels very planted, no more squirmyness under hard (in gear) acceleration.
With the clutch still being babied, its hard to say how effective the LSD will be, however in all the wet weather have definitely noticed the lack of the DSC light on the dash flashing at me every 2 minutes.
BMW should have talked to Birds when they originally did the suspension setup, probably not the M3 geometry stuff as its a little darty for the average numpty, but the B1 sway bars, springs, and shocks are a thousand times better than the M kit setup as a road car.
3 thumbs up.
Have been watching my oil leak, its very minor, can wait until the next oil change and Ill do it and probably the engine mounts when Im there.