An authorised map disc is about £200 for a DVD, or about £85 for a single country CD.
Everything else displays as you'd expect, and if you have an up to date enough firmware version, it will do split screen and "birdseye/3D mode" on the maps
It's an older radio though with only one receiver so unless you are using the CD or aux port (if you have one) the TMC service won't work unless tuned to classic FM