I had pro nav on my e92 330d (2009) it was embarrassingly bad. A £2k option not exactly useless but shockingly poor functionality. Send to car is ok but there are many areas for improvement. It's incredible that most of us have better functionality in our phones than in a 40k car with a 2k option.
I decided not to scope it in my x3 purchase. A wise choice I think so far.