It would not be a lie if I said I am waiting for all the bugs to be worked out before I pull the trigger on my MK7.5 Golf-R with DSG.....
It's hard to tell when, or if that ever happens. The 2015 R's and 2017 R's had some problems yet 2016's seem to be almost problem-free. In 12,000 miles I really only had a LF wheel speed sensor give me a problem. I have a code stored relating to the sound system, but I'll wait until the car is just under 3 years-old to get it looked at since it's not affecting anything. I wouldn't even know it was there if I didn't have a VCDS.