ASaintUK

Hi all, new here. Ok so I have a 2014 XF, and I noticed the sat navy maps were missing a few new roads, so looked at updating the software for the new maps, but was a little stunned by the price for the upgrade, has anyone upgraded? Is it just the maps or does it change the whole of the touchscreen software interface? Is it worth paying the quoted price as I don't use the sat nav too often. thanks