The town itself I saw nothing off, the yearly music festival was excellent; One huge field filled up with tents and various stages, slightly in the middle of nowhere and with an excellent atmosphere, although turning in to a mudhole if raining.
Favourite spots:
Orange stage is usually the main one, with the biggest names. The other venues vary, but the indoors ones are usually more intimate, naturally.
What's really great:
Tori Amos, Rammstein and Dylan... and how the festival pulled together all sorts of people from hard-core black metal'ers to happy hippies selling weed, and I never saw aggression.
Accommodations:
In tents. Yours or others' depending on drunkenness.
Restaurants:
Cheap, quick food and lots of Carlsberg beer sold.