I've now had 3 VW DSG Gear boxes - a 2011 Scirocco, a 2013 GTD and my new 2016 GTD - all have been faultless. About the only criticism i had (especially with the first GTD), was that if slowing down (say approaching a roundabout - then seeing it's clear and carrying on), the box would quite often change down to too low a gear. So for instance, if you were approaching at 25-30pmg in 4th or 5th, on a trailing throttle, as soon as you went to accelerate again it would drop down to third and as such the car would lurch slightly.
On the new GTD however, it must have new software, as it doesn't do this at all so as long as your approach speed doesn't drop too much, if you are in fourth, it will stay in fourth (unless of course you really boot it). It's taken the last real criticism I had of the box away, and I love it even more. Super smooth and always in the right gear, and ideally suited to the narrow power band on a diesel. Of course there is always the grand you have to spend to get the box which always has to be factored in (if purchased form new).
