I just had a set of BC BR's installed yesterday (e90).
Couldn't be happier! The installers here in Canberra (got them from BMR - Thanks again!) were amazed at the quality of the BR's. When I first jumped in it, keeping in mind I had stock (non-M) suspension prior) I thought it was way too stiff, however discovered they were on the hardest setting. Backed them down to about 3/4 and they're perfect.
There's also plenty of room to move if you're one that likes to tuck rims.
If you've ever been to Canberra, you'll know how many round-a-bouts we have here.. I now look forward to going through them!
Anyway - they get a thumbs up IMO.