After my Navigon was now a little long in the tooth, I was looking for a navigation system with larger screen and Lifetime Map Update. Therefore, the Becker fit exactly into the requirement. Unfortunately, the function and the map material is rather disappointing. The map is HERE Maps (Old Nokia) and compared with Navteq maps Navigon rather poor. Speed indication are unreliable and roads that are now available for 1 year, according to Navi can not be driven. A correction on the homepage Here Maps was also not possible. Apparently the change from Nokia to Microsoft is not yet fully completed. :-( The quality of the built GPS and the associated navigation is also flawed. In the tunnel the Navi sometimes just jumping on a 40km distant highway. That should have prevented the software. After the route has been calculated correctly after tunnel. If you start with the navigation in a parking lot, it shall so inform the Navi location on one of the umligenden streets, which is also not very helpful. My old Navigon could see the already and has directed me with a direction arrow in the direction of road. The 3D lane guidance is no help in many situations. So 5 traces was shown to me on the highway. Too bad the 2 belonged to a neighboring street that ran next to the highway. The announcements for guidance carried out in places far too late, making navigation is very unreliable. The Bluetooth interface is not working well and so not all numbers are transmitted from the address book of the mobile phone. For me, thereby missing some important numbers. For that I fax numbers from the Address Book in Navi for viewing. The handsfree works themselves, but also create the 20 Euro handsfree. Navigation is moment during telephoning only limited because the cards are hidden. On the whole I would by a Navi in the price range expected more. The added value in relation to the navigation to the mobile phone has not yet been set. Too bad.