Fives across the board. I highly recommend Alexander's apartment. His communication and thorough check-in description made finding and staying at his place seamless. The apartment is gorgeous and provided all amenities as described in his listing. The location cannot be beat. We walked everywhere and you're incredibly close to public transportation as well. We really enjoyed the people and food at Gigerl, a restaurant right across the street from the apartment (Alexander's recommendation). Overall, if Alexander's apartment is available during your stay in Vienna, book it. You won't regret it.