Although its not a DSG, I have just gone to stage 1 on our PD140 GT, initially I was a bit disappointed, but now that the ECU seems to have adapted it is big improvement over standard.
I specifically wanted a smooth delivery throughout the rev range, this is something I have definitely got, I would be very interested in seeing a graph on a dyno run. The best way to describe it, is it's not in your face, infact its more like driving a CR than PD, but when you spool up in a low gear it shifts, and you reach target speed very quickly. No difference in mpg yet but I have only covered a 100 miles or so since uploading the remap.
HTH, Lee.