Research 101. Rewarding participants can negate the neutrality of your respondents. You have been nice to them, they will want to be nice to you in return and tell you what they think you want to hear, and not tell you what they think you don't want to hear.
No results found.
Beer, 5 stars. A genuine German beer process, and a very drinkable product.
Food, 1 star. As a previous reviewer noted, autobahn rest stop type food. A very limited menu of lackluster choices. You would get more choice at a street corner schnell imbis in Germany.
The mushroom pizza (choice of one pizza) was OK but very small for the price. The sausage was not hot. Meat products should not be served luke warm, even if they are factory cooked like a Bratwurst.
I would go back for the beer, but would not take anyone there for the food.