Murray's theory was that ALL VAG cars around that time were all built with substantially substandard parts because all monies were being poured into their Veyron project. I'm inclined to agree with him - I've had German cars for years and I've never gone through calipers, waterpumps and fuel pumps in under 80k kms.
The DSG is a thing of beauty and an engineering masterpiece - generally you can't really fool it. Early ones (mine was 2007, the first versions being in 2005) did have an issue of preparing and selecting 1st gear (and NOT preparing 3rd) when 2nd was all that was required - like if you're exiting a corner or a car park which has required you to lift off. You'll hear a loud clunk and you'll be in first gear when you really should have stayed in second.
The 2.0t will be significantly lighter in weight, obviously because of the lack of drive to the rear wheels. This pisses some people off, but the difference in fuel economy will be interesting.
I've had both and as much as I adored the R32, it was a pain to own. 350km out of 50litres isn't good sense to me, even when a full tank here is only seventeen quid...