My wife and I stayed in Charlotte's flat the first week of June 2017 for five nights. First, I want to comment about Charlotte. Half way through our stay, we went to Melk/Krems for a day trip. On that trip, my wife fell and broke two bones in her left ankle. She spent the next four days in hospital in Krems. I contacted Charlotte to let her know I was keeping her flat but needed to find a hotel in Krems. Charlotte did a search from me and found me a hotel near the hospital; she also offered to extend my stay in her flat if i needed it. I can not express my thanks enough to Charlotte for her help.
Now, the flat. Its excellent. We arrived via train and took the metro to near her flat. She walked to meet us at the metro stop and walked us to the flat. It is about three blocks from the metro and one block from the tram. An excellent location. the flat is very nice, with a king bed and large living room and dining area. It appears exactly like the photos. A well equipped kitchen and the bathroom was good with a washer. There is a free standing a/c in the living room which cooled the living room and bedroom. It was very hot when we were there at 88 degrees F. the flat is easy walk to center of Old Town. If you are staying in Vienna, this is a great place to stay.