This might be the only* place in Aachen where the choice of beers is not limited to 1 middling Kölsch, 1 mediocre Alt, and 1 boring Pils. An appealing selection of renowned international (mostly Belgian) ales and some good German lagers. Served in fitting glassware, at prices lower than in Brussels. Neither in the "dome" nor a "cellar" but nice old, narrow, intricate rooms full of students, tourists and other good-humoured folks. Smoking permitted.
* Any objections from Aacheners? I hope so ... in order to be directed to a bar with decent beers from the region next time I’ll be there.