Rate the Audi A6 2.7T Biturbo

My friend recently got one i wanna see how it is (:
Rate it in the following:

Performance
Comfort
Reliability (safe?)

Do a 1-5 star rating on each and feel free to add a quick description.

Since my friend took me out in it I'll rate it for myself

Performance 4 stars. Biturbo!
Comfort. 3 stars. although Audi is luxurious, I don't like leather
Reliability 4 stars.