Extremely clean and in an outstanding location in Central Vienna. For the value, I double you will find a better apartment that is reasonably priced in the City Center.
We ensured that we had Osman's information saved on WhatsApp and re-contacted him 2 days before arrival, to give him our exact arrival time at the International Bus Station. Upon Arrival, we texted him again on WhatsApp and he was waiting outside the apartment building upon our arrival by metro from the bus station.
The apartment is very quite; safe and secure; and in a wonderful location. This 5th floor apartment is impeccably clean, and had plenty of room for 3 adults (which could have accommodated 4 adults---- 2 in bed and 2 in pull-out sleeper sofa). We enjoyed the great little kitchen that comes with about everything you need. There is a grocery (Billa) about 2 1/2 blocks away which we used frequently.
Overall, I thought this apartment was an outstanding choice for my wife and I, who was accompanied by our adult daughter. I do recommend this AirBNB host and would certainly stay in that apartment again.