My husband and I came to Vienna for three nights as tourists. The place was easy to find, close to public transport (even when arriving at 01:00 AM). Unfortunately we were given the wrong code to enter the apartment. Since it was the early hours of the morning, Rodrigo didn't answer. It took us until 04:00 AM to find an open hotel with a room available, which was exhausting in the cold and rain after a long travel. In the morning, Rodrigo was very quick to apologise, correct the code, and give us a refund for our hotel expense. The check in experience was very frustrating, but the response was very fair. I believe had it not been the middle of the night, we would have gotten a response quickly.
The apartment was clean and with adequate space for two for a short weekend. Walking distance to city centre (20 - 30 mins) or close to public transport. The kitchen is small so we did not cook and ate out for every meal. There is a good choice of restaurants behind the apartment.