Car Enthusiasts: Alcantara question

I know there are a bunch of car enthusiasts here, so I thought I would throw this out there. I am considering a new A3 with Alcantara inserts in the doors and seats. Does anyone have any experience with Alcantara and maintaining it? I do a lot of mountain biking and am worried about dust and dirt.

I have done a bunch of searching and there are very mixed reviews out there. Some people say that it gets holds oils and dirt, balls up, and doesn't last as long as leather. Others say they would never get leather again, and would only go with Alcantara for their future cars. The people who like it say that it is very durable, easy to clean, and is more durable than leather.

If anyone has any experience with Alcantara, I would love to hear it.

Thanks!
Dan