I managed to do 4,000 miles on these tyres and from new they were 8mm, and when I sold my car the fronts were down to 7mm and the rears were still on 8mm. This is due to the heavy front end of the diesel and the tyres pressure being 41si front and 32 psi rear. Although the car is quattro the fronts do wear slightly more than the rears.
When I first put them on for the first 500 miles they felt a bit woolly but once bedded in they were nice.
The tyres look great, nice rim protection, the dry grip is very good and the wet grip has been very good also. Tyres are nice and progressive into the corners and they feel very comfortable so I would give them a good 8.5 out of 10. They were £110 each fitted and you simply can not go wrong. It is a nice mid range tyre and I would expect 20,000 miles out of these easily.