This dirty, poorly decorated, dark restaurant is to be avoided at all costs. You're better off at McDonald's.
The meal was bland, and flavourless. Everything was fried in the same pan. The wine was warm, and overpriced.
The dessert was fruit from a can.
The service was mediocre and a 20$ mandatory tip was enforced. Seriously, just go get a BigMac, you'll be a lot happier than wasting time or money at Alpenhaus!