Ive had my mk6 GTi for about 3 months now, its a 2009 with the DSG gearbox and I have to say that I absolutely love it. Look out for after market HID xenons though, mine came with them and they were fitted badly allowing water into the fitting causing them to switch off whenever they felt like it! I took them out and had the standard lights fitted back in but was quite pricey. The only other fault I had was with the accelerator pedal. It developed a fault which put the car into limp mode and this can be quite common, turned out to be a broken clip on the sensor allowing it to lose its connection so straight forward and only about £40. I would definitely recommend the mk6 GTi to anyone but as I have only had it for 3 months its early days!!