Astrid's apartment was perfect for my 4-night stay in Vienna! It is very conveniently located by the Naschmarkt and a 10ish minute walk into the main area of the city (Opera, museum district) and 15minutes to the center (St Stephen's Cathedral). I only took public transportation to/from the airport. Astrid was not around much, but she was lovely when we did have a few moments to chat. The room is small, but perfect for a solo traveler. The apartment is quite and charmingly decorated with a fun, bright vintage-chic aesthetic. There are a ton of nice coffee shops and restaurants around that are more reasonably priced as your out of the touristy area. I highly recommend this apartment!