Ive got the audi VC, it is rather cool.
What I really like is that this means there are so few buttons in the car, just about everything is VC controlled. My normal tab is car data, so speed, revs, trip data, and oil temp.
But with a flick I now have the multimedia (eg radio) in front of me, still able to see speed etc.
Is it a game changer? No, just like I don't get the fixation some people have if you have a mono level dash, I mean honestly who cares.
But it certainly makes driving way safer once your used to it, as doing pretty much anything is a look down to the dash in front of you, rather than a look across to find some seemingly randomly placed button in the centre concole etc
Cars will go wrong, inevitably. I havent heard of anyone though (on audi forums) complaining their VC has failed. I mean its pretty much just like an ipad in effect.
I do dislike touch screens though, I have yet to see one that doesnt look bad in real use, stick with a few buttons to control it imho
Oh Edit to say going back to handover at garage when I bought it. Sales guy said to me "i love the VC as once I show you how to work it my job is pretty much done, where as without it I have to go over loads of buttons"