Summary: I own an '09 M3, but prefer to drive this '11 Golf TDI.
Great exterior style, very comfy seats (I am 6'4") with great side support for back and hips. Audio quality is great... get the Dynaudio option.
Very fun to drive... the torque hits like a 2 stroke motocross bike... at all RPMs. Very fun to corner around free way ramps... Holds family of four quite comfortably.
I had a significant collision within weeks of buying it... and the front end got crushed, but the engine was 100% OK, and the subframe wasn't touched. So the VW front end collision system absorbs hits very well.
Bluetooth stereo streaming from phones (Droid X in my case) is reliable and perfect quality. Steerable headlights is nice option.
The diesel is fantastic... I get 35mpg just driving without care... if I drive carefully on freeway I can hit 40-45mpg.
Nav/radio screen is a touchscreen! Very nice.
Can't think of anything to fix here... this car is near perfect.