In my experience cafeterias at universities are awful sad places that can be attended only a) to save money b) to meet boys/girls.
But the Dozentenfoyer at ETH in Zurich is different. Maybe because it is for the professors. Anyway it is very nice (a little more expensive than the normal cafeteria) and offers one of the most astonishing views of Zurich. Little tip if you have tha chance to eat there: the mini desserts are a bit pricy but excellent!