I have owned one DCT equipped vehicle (2010 Ralliart) and driven quite a few others, including VAG products. So far, i prefer a normal A/T or Manual gearshift. Maybe there's one out there that would change my mind but haven't driven it yet. Also, the DCT fluid cost was very expensive when i owned the Mitsubishi ($19/qt) and it needed ~8qt every 20-30k miles when slippage would start.
The GLI 6-sp, on the other hand, is very nice.