As many of you know, I originally was going to omit the B&O after listening to it in the 650i. Then I changed my mind and ordered it. I'm glad I did. It is a very nice sounding system. I just wish the speaker grills in the doors fit without the plastic surrounds like in the 6-series.
The nav system is a mixed bag. It's not as good as the old nav in my old E60, but a definite improvement in accuracy over the navigation in the wifey's 2010 X5.