I don't know, but have been told that the aluminum under the fabric is not the same as the kitchen back splash in our Classic. (the only exposed aluminum in the unit). I was told that the rest of the interior aluminum is not clear coated like the exterior and may have imperfections in it, as it is covered anyway.
I, personally like the "mouse fur" for two reasons:
1) is offers SOME insulating value. You just dont feel the heat/cold radiating off the walls, like the bare skinned models.
2) Velcro "hook" side sticks to it very well. All my decorating is done with Velcro and all my remotes, etc stick to the wall.
Now, if it just didn't look like Grandma's house.....