After owning this car for about 2 years, it started giving me problems. I spent over 2,000 dollars within 2 months on repairs before finally getting rid of it. I had to get 2 new batteries (the first one only lasted a year), new alternator, new valves and hoses, turbo cut off valve, battery fuse panel, alternator harness, ball joints, shocks, and new brakes and tires (brakes and tires were understandable, though).
Right before I got rid of it, it wouldn't accelerate and wouldn't exceed 5 mph.
The sealed system was also frustrating because you couldn't do simple tasks like refill the brake fluid by yourself. You have to take it in to a VW shop and pay for everything.