The only problems I have had so far is the fuel pump went at 8,000 miles and the rear brake rotors had to be replaced at 2,000 miles.
Maintenance is quiet expensive. 20,000 mile maintenace cost me over $300.
This is my second Jetta and I am very happy with it. The power is outstanding as well as the handling. Gas mileage is great on the highway. All the controls are very easy to use, and very basic. The blue/red lights are great and everything is easy to see at night. The Monsoon system is just OK at most, sound quality could be MUCH better, especially the way VW "hypes" about the Monsoon.
This car is a real head turner. All my friends love it and I have gotten two of them to buy one.
Don't go to dealers for tuneups and the like. For almost everything on your car, either you or a local (cheaper too) mechanic can take car of the car. Bringing it to dealers all the time is just not the right thing to do.
I don't think early failures of the fuel pump and brakes are good things. Wait until you reach 50K miles.