Tickets obtained online and printed at home were processed with no problem. Located 2 blocks from tram; an easy walk. Ushers have adequate English to find seats. The building is a gem, nicely restored. The box seats were not at all comfortable; recommend main floor seats instead. Subtitles are in Czech only. Audience attire varied from open-collar to sequined dresses. The production I attended was Carmen. The orchestra was very good. Corus, excellent. Production, excellent. Secondary singers, excellent. Principal singers, adequate (this was a repertory cast).