Staying at the Arnika is like visiting a haunted house in a theme park: you'll pay good money to feel disgust, alienation, discomfort, and then relief when it’s over.
I have to agree with the other reviews here: the owners (i.e. the only people manning the reception) are truly horrible to deal with. In person they were worse than on the phone. Patronizing, hostile, self-serving. Their demeanor goes beyond any normal tolerance for "some people are just naturally warmer than others" - instead it seems like pure contempt for guests. You can say ‘good morning’ to them, but they just walk blankly past. They run a hotel but seem to hate dealing with guests. The Arnika's owners are a classic example of managers with no interest in quality or hospitality, just in exploitation. I speak fluent German and live in the region, so this perception is not down to any language barrier or culture shock.
But what about the rooms? That depends how much you enjoy cold showers and finding pubes in your bed. Please enjoy the attached photos illustrating how filthy the rooms were. Sleep quality was terrible: worn-out mattress, creaking bed frame, thin curtains, no sound insulation, stuffy.
You get the idea, but there's more.
To be fair, the breakfast was very good. The team there was warm and attentive. The selection and the quality were above average. For example, the fruit salad was mostly fresh (rather than canned) and the coffee machine made a great cappuccino.