At first glance, Navigon is a useful software that routes are passable and offline navigation is based on the reception location always good. That's it then but even with the benefits. The disadvantages outweigh as something more: the software runs very unstable, it is from the Amazon Appstore apart the only software that has ever crashed, which also are the crashes still despite reinstalling regularly can only point to poor programming. That's not worth 45 euros. In addition, a map updates cost almost 60 euros. The cockpit also the additional software least 20 euros will cost works on the Galaxy Note 2 not funny any other software that the position sensors used to work or at least has a calibration function. Sloppy programmed and overpriced more you can to not tell. Congratulations Garmin, a customer more never reconnected money in your company.