Time Out says
If you come to Zurich for a bash, the Platzhirsch is a great choice. The downstairs bar is lively until late at night and has an outside seating area.
It might get a bit noisy in this hotel, located in a historic building just off the lively Hirschenplatz in the middle of Zurich's Niederdorf. The downstairs bar stays lively until late in the night and is a popular venue on Fridays and Saturdays, offering also an outside seating area. However, if you came to Zurich for a bash and want to do it like the locals do, this is definitely a great choice of accommodation.