This thread is six years old. I don't know if you are aware but in 2015 this seat cover option was leather and alcantara. Unfortunately VW quietly dropped the leather element some time ago meaning that now you are paying for faux leather, ie plastic with man made alcantara. Imo its only real advantage is that it doesn't show stains like the standard upholstery does.
We didn't go for this option on our current van as we didn't feel it represented value for money. Instead we had the seats treated with Autoglym protection and have waterproof seat over covers which are much more practical.