I've got a 2010 A3 170PS 2.0TDI Manual if any good to you for info? (Same engine).
The gear change is fine, nothing noticeably different from any Mk5 Golf TDI I've driven.
It notches back out in 3rd and 4th sometimes with fast changes, unlike my MK5 GTI did but some of that might be down to driver haste if I was honest.
Certainly drive one and give it beans between the key gears once warm to make your own assessment