i done mine recently.
Took the whole front of the car off, bumper, lock carrier, radiator etc.
So much better access with all that out the way.
Took me about 4 hours, taking it easy.
I'd make some timing marks on the crank pulley itself before you remove the old belt, as Audis instructions tell you to use the anciliary drive pulley, which is a ****** nightmare as it has about 3/4 of a tooths worth of movement in it.
Mine had a centre punch mark on the pulley and on the rear housing, which i suspect has been done at a previous belt change.