Like everywhere else in Zermatt connected with one of the Julen families, this place is kind of…read moreexpensive but if they're not charging a cover (usually before 10:00 PM), it's worth checking it out -- if only for the movie theater which shows independent movies and a lot of stuff one doesn't find at the cinema (at least not in the U.S.).
Otherwise, another late night bar with Zermatt prices one floor down and an art gallery (hence the name, vernissage) and movie theater one floor below that.