Well built and high roadability particularly in northern climates where the quattro really helps. Hardly any minor defects. Excellent fit and finish. Only drawback was that at 150,000 miles had several expensive repairs that were not routine maintenance including failure of the power windows, pulley bearing failures and computer controls failure.
Traction and performance of the quattro AWD system is exceptional. A quiet, quiet ride (you can whisper in one on the highway and be heard by a passenger).
More durability in some of the small features like the heated mirrors, power windows, retract motor for the sunroof.