I have seen the VMS system and had a bit of a play with it, they cost about $2500, while nicely integrated with the dash, that's where the good bits stop in my opinion, the head unit is the same thing that you can buy on Ebay from Chinese sellers for about $700, so they are charging a rather large premium for their software which to me looks just like a re-skinned version of the Chinese software.
On the car I was looking at it in, a D40 Navara the audio quality was atrocious, it could have been the fact that it still had the factory speakers but it should have still sounded at least reasonable.