Much as I'm sure you'll hear horror stories...mine is the reverse.
I bought a 2007 GT TDI 170 DSG from my dad last year. He bought it new and apart from a lambda sensor that failed at 2 months old and a couple of broken springs over the preceding years...it's never had anything fail.
No electrical problems, no dead pixels in the dash, no interior wiring issues, no rusty wings or tailgate, no corroded wheels, despite spending many Scottish winters in the salt and road grime.
I bought an aftermarket warranty from Warranty Wise to cover the DSG because I was crapping myself over a potential £1600 bill...but it's never missed a beat in nearly a year.