I've been led astray onto wrong roads and highways a few times by the Nav in my 5 week old X3. Very disappointing. Especially in comparison to the FREE navigation on my Android phone, which provides perfect directions every time, instantaneous re-routing if I go off the path, Google voice search and integrated web-based search ("find me a good cheeseburger within 10 miles and navigate me there" - it really does that). On the other hand, I really like the turn by turn directions on the split screen and the voice ducking with music playing of the X3's navigation. So, I tend to use the X3's nav for long-ish trips, and Android navigation for scooting around town. I've gotten to a point where I think the X3 nav package is terrible but functional, so I'm not as upset about it as I was at first. Wife and I have already agreed that if it ends up being possible to switch out the old nav for the new '14 nav for $2k or less then it's a go; more than that, we talk/argue about it a bit.
2013 X3 28i
1997 Merc C280 Sport
Retired: 2005 X5 4.4i ... 2002 540i ... 1999 M3 ... 1997 328i ... 1988 535i