My stay at Gabriel's place was really perfect. The location could not be better, near all essential transport lines and surrounded by really nice restaurants, cafes and supermarkets. Even the only supermarket open on Sundays in Vienna is super nearby. The flat itself was spotless with all essentials. Even though Gabriel was not around to welcome me, his lovely neighbor did and Gabriel sent detailed videos on how to use the washing machine, dishwasher and heating system and he was always super responsive.
Would highly recommend Gabriel's flat whether you are a tourist, on a business trip or staying somewhere temporarily while looking for flats in Vienna (which was my case).