Reading the comments I appear to be the exception. I lease a 2015 BMW 4-series which I added "Professional Media" to and the nav works really well. I've driven plenty of other cars where the nav is useless, but not all are bad. Reasons to use it over my phone: * 11" screen shows me a high quality map overlayed with current traffic, with 1/3 split for lane guidance when needed * Directions also shown directly on the d…
I use the car's nav only when I don't have to worry about delays caused by traffic, otherwise google maps is my first option.
BMW's nav is pretty bad in offering alternative routes based on traffic data, but I just LOVE the directions on the HUD.