I have had 2.0T Fsi FWD and Quattro 53 and 05 reg. The Quattro is so so much nicer to drive, and handles like a dream. FWD scrambles from take off and felt far less secure and not so quick.
Obvious choice for me. QUATTRO every time ... it's what Audis are best at.
£40 is a bargain, it's easy and far better value than a Multi function steering wheel.
If in a hilly area (as I am) just click on hill hold once and it does everything perfectly!
Hill Hold is a seperate switch closer to pilot than the handybrake switch.