well, I'll give you all my review of Eurowerkzlc. I had Doug pick up my car and install the Koni FSD/Eibach kit on my e92 on Wednesday. I have to tell you, it was nothing but top notch service and professionalism.
Again, I only knew of Doug through some other people but have found him to be very knowledgeable and courteous. Now that I've met him and had him do some work for me, I'll be going back if I ever need anything...just my 2 cents.
As for the FSD/Eibach set up, WOW! I didn't think it would actually ride better. The ride is more refined under normal driving conditions but the shocks definitely change character when you push them. I'll be excited to get them on a track to see what they really do.