We were at Vienna with our 6 months old son. Andrei was already there when we arrived, he was very helpful, gave us brief tour at the place, and was kind to give a few tips about surroundings (Plachuta restaurant was the best!)
The apartment itself was even bigger than we thought it was at the pictures provided here, clean and cozy
It's 5-10 minutes away from all main tourist attractions.
We enjoyed our stay in Vienna very much!