Costas is very friendly and helpful. The house is very neat, organized and clean. Our room is very spacious, very clean and comfortable! It is evenly located beside one of Austria's best ice cream shops. It was also very nice of Costas to leave two Vienna guide books for us to read and gave us Vienna Wien waffer biscuit which is very yummy. He even put up some simple instruction in English how to use the washing machind as we couldn't read Austrian language. In general, I definitely recommend it!