I spent 4 nights in this nice apartment with my family. It was very clean and Silvia was very quick in replying to our queries. The location was not the epicenter of Vienna but for us it was even better since we had a playground and a beautiful Augarten park just behind the building which was perfect for our small kids... The underground station was less than 10 mins away and the center is 15-20 min walk so it was still central enough for everything that we wanted to visit.

All in all it was a very nice experience!