We stayed in the apartment with 4 colleagues very close to WUK where the Waves Vienna festival is. Its super spacious and each one had their own bed. 2 people had to share a room, which was fine. New kitchen. Michael rents a few flats in the house wuite professionally. Only problem was that there was already another booking the next day quite early, so we had to check out at 10:30, which for us was a little difficult with working late at the festival. Be aware to ask for late check out in advance.