Only 3 points, because ....

The device is quite good but unfortunately you can not cancel prohibited for trucks streets themselves, because often is this passage prohibition limited in time or only applies to through traffic and not the truck there are a loading / unloading. This is very annoying because the device tries me of county roads and country lanes and 3rd order in a case (B7 in Fürstenhagen) by a road in the course of which a railway bridge height is 3.3 m, redirect. Since software terms would have to be considerably improved.
The attachment to the (truck) disc is very good as well as the size of the display's. Operation is intuitive and therefore very good.
The speakerphone is also quite good.
The price is high does not matter if you get a lifetime new maps that value for money is ok.