I also had DSG in a mkV GTI. I found it superb and candidly I felt it really made the car! Totally reliable and offered most of the fun of a manual with most of the ease of an auto. Lazy shopping trolley to hot hatch instantly. Way better than the crap slush box I have now which only changes up when it's good and ready and changes down way too easily. As with all things, as long as they have the oil changed as per recommendations all should be AOK. Highly recommend.