I just came back from Staples and while I was there I checked out the Navigon 2100 because I was also interested in this unit. To tell you the truth I think I will pass on this one. I thought there was a very sluggish response time from pressing any button on the unit, until it actually did something. I also tried the Garmins and TomTom's and the difference was very noticeable, on both of these units the response time was almost instantaneous. I played the demo mode in the Navigon and even that was choppy. I was really trying to convince myself to still get it on BF but the more I played with it the more I was disappointed.
Navigon..press button, wait..press button, wait.
Garmin & TomTom..press button, bam screen, press button, bam screen.
I also thought the screen was not as sharp or bright as the others and yes I did try to adjust the settings. I just knew that the response time would really tick me off when using it.
So please keep in mind that this was just my own opinion and I am in no way associated with any of the gps manufacturers or staples. I think if you are seriously considering this unit that you take a ride to the store and check it out yourself. I think I will go for the TomTom myself.