Really nice apartment, makes you feel like you're at a friend's house. I love the old Austrian/Hungarian buildings with really tall ceilings, makes it feel so huge and open.
We came here with our cat, and it can sometimes be a challenge to find proper apartments for pets. Dimitri was very sweet and even prepared a pet bed and some food/water bowls before we arrived. So our first priority was well taken care of!
All amenities were there as advertised. We cooked at home one evening and had everything we needed in the kitchen. Dimitri was nice enough to provide coffee and tea, a nice touch. It was great for us that there's a washing machine too, you don't always have that.
The apartment is located at just a 10 min walk from Schonbrunn, one of the main attractions in Wien, and another 10 min walk from a subway station which connects to pretty much the rest of the city.
One downside at least for us is that the apartment gets very warm during summer days. Should open the windows at night and then lower the shades during the day to get by, but we couldn't open the windows with our cat.
Be aware if you go by car that parking is difficult. The main street right in front of the building doesn't let you park there for more than 1.5hrs during the day and is paid if I understood correctly. There are also a few spots which appear empty on that street and the smaller side streets, but they may have a sign saying that they are reserved for construction workers, so don't park there. You either need to take a few turns around the block until you're lucky to find a spot without time restrictions or you can go to a private parking, but those can cost upwards of 30€/day, too much for us.