I was very much tempted to get the B&O, but my salesperson advised me against it when ordering. She said that yes, B&O looked and sounded nice. But unless I plan to LIVE in the car, much better to spend the money on upgrading my home theater setup
So I ended up with the BMW Professional Sound, which is more than decent
And I forgo the BMW navigation (optional here) and HUD as well. My android has way better functionality and screen than the BMW system