We just got the navigon 2100 max (the 4.3 inch screen).

 It is a great unit love the large screen and the POI database seems comprehensive (I love the logos on the screen). 

The lifetime traffic is a MAJOR bonus, it prevented my in-laws from missing their train home this weekend as a road we take was closed due to accident.

I like the fact that you can update the maps quarterly I downloaded the quarter 4 maps before leaving but it did not seem to take I will try again later. I probably missed a step.

When I got the unit through Amazon it included both traffic and maps in the original price and...