In a word, they are brilliant! Having driven many 10s of thousands of miles with DSG (Stronic in Audi vehicles) transmissions I'd observe that those with a wet clutch (where the torque converter would be in a conventional Auto would be) have a smoother take up from rest. The 1.5 TFSI version has, IIRC, a dry clutch and tends to be slightly more abrupt.
One learns, with experience, that a swifter move away from rest requires the accelerator to be depressed just a smidgen sooner than you'd perhaps expect. With the 1.5 there is the inescapable fact that its a fairly heavy vehicle and a brisk move away from rest will likely see the front wheels scrabbling for grip.
If the grip issue troubles you than the solution could be to look for one of the two 2 Litre petrol versions that both had 4 wheel drive (part time using a Haldex device in the rear axle) and either 190 or 300PS, Fuel economy on the 300PS version varies according to the way you drive it - I average 35mpg and long runs get close to 40mpg.