I've owned about 30 cars and this one was my favorite. Quattro all wheel drive is much better than rear or front wheel drive when rain or snow falls. 5-speed is silky smooth, perfect balance of sporty and comfort. Buy the 1.8T. It feels faster than the V6 and is MUCH better on fuel. Also, the V6 is too heavy, loading up the front end and affecting handling. The V6 is ok for the older folks but if you want the sport aspect then go wth the 1.8T. Or even better, get an S4 if you don't mind spending a lot of money on upkeep. (You'll pretty much beat anything around in a race though.)

Cons:
- Reliability. These cars aren't cheap to own. Timing belts have to be done every 160,000kms and it's an expensive job; around $1,500. As long as you understand that this is not a Japanese car then you'll love it. Drives amazing!

P.S. I've owned Mercedes C-Class, BMW 3-Series (all gens) so I know my stuff.
Cheers!