On my e34 it crashed like hell, it was low but way too soft, the suspension was bottoming out all the time. I had it installed together with new Bilsteins. If you go around a fast corner and there is a dip in the road, the suspension will bottom out and then bounce back violently and scare the shit out of you because you lose control.
I switched to Eibachs and have no complaints. My Bilsteins have since worn out and I'm using standard Sachs shockers now and have no problems either.
Stay with the well known and well tested brands, they are well known for a reason.