I can't find the other thread on the first page. Maybe you could post a link to it?

Anyhow, my nephew as a 1.8T A4. It is decently reliable (considering he beats the shit out of it and runs it on 18psi or something). He hasn't had any serious issues and it has about 40k miles on it. As long as you take care of it, any car can be reliable. It comes with a decent warranty, not the best, but decent. I think the only major thing he had to do was replace the clutch.