I stayed in Antonio's AirBnB with two friends and we had a great stay! The apartment was spacious and we made good use of the kitchen - it was very handy to keep some food in the fridge for breakfast and late snacks. The location was lovely, lots of vibrant restaurants in the neighbourhood, and only a 5 minute walk to the subway and busy shopping street.
It may come as a surprise to some travellers that in Vienna it seems to be quite common for the toilet to be a separate room from the rest of the bathroom, meaning you have to leave the room to wash your hands, and this applies to this AirBnB. Not a big deal, but just something to be aware of!