I am curious as to the general feeling about BMW's nav system in their current models (I have an '08 M5). I am disappointed in the system and it's general operation. I am a big fan of the car itself but this toolset is lacking in my mind. I drove an Acura for awhile (2005 MDX) and its system was significantly better. My primary difficulties lie in the lack of an intuitive interface, the difficulty in finding things by name, the general lack of data available, and the interface system. I will admit upfront that I never "talk" to the system although I don't believe that would help me find the nearest "Blockbuster" when I am in a strange town for example.