I have bought this navi last monday. It does NOT have a great usermanuel. On the blue-media webpages there is NO user manual. The PC software coming with the navi is Destinator Console. With the Destinator Console I could NOT delete/replace maps on the SD card. Have sended an email to blue-media on monday and did NOT hear anything from them (almost a working week later). The navi has some advances, but needs working software and a manual.