We enjoyed our stay. The apartment is close to parking, public transportation and a few nice places for breakfast. The check-in was full of detailed tips for our visit in Wien, which came in pretty handy.
The amenities are very good and you could do without shower gel and towels since you have everything there. Do pack one or two laundry detergent capsules if you think you’ll need to wash any clothes (there is even a laundry rack)
The bed was very comfortable and we had a good night’s sleep after a long day of walking.
There are some things which we didn’t like but they don’t apply to everybody: sleeping with the window open was not an option because of people talking on the street until late at night and one could hear a ticking noise from the thermostat.