Oya Bar Kafé is a nice swedish bar conveniently located in the city center, close to the Marktplatz.
The good points:
The place is nice for small groups or couples. Ambiance and decor are very simple, but cosy. The bar offers a decent variety of beers, with some scandinavian choices along the classic Schützengarten (the local beer). The service at the bar is friendly and the music is usually good (depending on the DJ :P )
The "can do better"
The place is really crowded on the weekends, so it's hard to find a place to sit sometimes read more