[HMN]

From my personal experience i've had different thoughts on the B&W on different BMWs.
The first time I ever heard it was on my brother's 2017 750. It was clear, crisp yet sometimes lacking bass. Then the 8er came out and I tried the system on that car and it differs from the Coupe to the GC. The ones on the Coupe sound much better, I don't know if it's because of the smaller cabin.
Then I tried it on the X6 M50i and I loved it. it was full of bass, crispiness and you could enjoy it even on the lower frequencies. I especially loved the 3d surroud sound which was lacking in the previous cars.
THEN I tried it on the 7er LCI. I don't know if it was the car itself as it was a loaner from the dealership but it was a disaster. It wasn't near as loud as it could be, felt a bit noisy and unclear (if that makes sense).
Now i'm driving an X7 M50i as a loaner (again, yes my car gets sent back to the dealership alot these days) and while I love it once again it does feel lacking on the lower notes.

It may be my unfortunate luck to have different experiences with the same brand but all in all I'd upgrade to the B&W.