List was £650 all in, I paid £500.
If you've got the roof rails the bars are super easy to fit. They come with a 'key' spanner with a built in torque wrench so you know they are the correct tightness.
If you don't have the rails I'm not sure I'm too keen on the bars clamping direct to the roof...
The box is the 300L one (longest/thinnest so I have the option of adding bikes along side in the future). They have 2 larger capacity ones but they were over kill and even more money on top of an already ridiculous cost!
The box is also excellent with 4 hand wheels inside also with torque clicks so you know it's correctly gripped the bars.
It's a 2 person job to attach/remove the whole lot, 2-3 mins.
Initial fit is 2 person job, 20-30mins as the bars have a rubber seal you have to put on - but your dealer will do that for you. I helped the master tech fit mine so I knew how it worked.
The bars will stow inside the box when not in use as well (not sure if they will in the shorter fatter boxes).
It's all Thule kit with Audi rings stuck on, I looked at Halfords and I actually paid less for the Audi branded than the Thule originals - well worth beating your parts guy at your dealer up