Isabella's apartment is great for a single visitor or a couple! The location is splendid, close to the U3 and U4 lines and to the 57A and 13A bus lines. Two grocery stores are within a minute's walk, and the Naschmarkt is 10 minutes away. The apartment is clean, bright, and airy, on the top floor, and on back, so it's quiet. Isabella was a welcoming host, and I had no problems during my 19-day stay in Vienna. Highly recommended!