Echo the sentiments here and much as Rebecca states am quite 'techy' too being in the industry and have my share of tech.
With the cars being static its hard to really judge them but the resolution and screen does look of a decent quality the display looks clean flat and sharp but was not able to navigate the UI.
The matte finish of the screen is obviously to offset glare which is another concern as we all struggle to see any screen in the sun, but that under controlled lighting was not something able to test as sharp and clear in the dark cabins.
The YouTube videos do give good insight to the functionality though and it does look pretty impressive especially on navigation.
However it struck me that was not in anyway excited about the prospect as I was just looking at another screen in my day! and its just another damn UI to learn and as soon as had a look over the S3 one of the features that grabbed me was the dials, they looked clean and classy, a would say a real feature.
Think the Golf dials are not as good to look at as the Audi, bit more cluttered? but having been out most of day in my GTD yesterday they still have a nice pleasing presence as look down onto them.
On the technical front imagine they would be pretty reliable but have heard that many times in my industry and its not always turned out well

and a blacked out screen at speed would be no fun. Also have no idea to how intelligent the UI is, this is to be seen, but if its a bit clunky, you are then into the territory of version updates! patches, etc.
There is also the HUD as an option, that not seen, but glass screen pops up with data then projected onto, really?! now that does sound really yuk and unnecessary.
In summary the whole experience will likely be very PlayStation the needle sweep on the virtual cockpit would be quite underwhelming imagine! and once novelty wears off sure many would miss the dials.
Might not put me off the Tiguan as dials are not really a feature for an SUV but on a performance car like the GTI, R and S3 think dials are a must.
So will be interesting to have a view from someone who has used in anger which sure will occur soon as they rolled out more and more.