We had a great time at Dominic's apartment. He is super friendly and responsive, ready to help with any questions.
The apartment is very spacious and clean. There is a well-equipped kitchen, a spacious living room with a TV and even a grand piano. To be honest, I didn't expect the apartment to be so big :)
The apartment is located not far from the center of Vienna, you can walk to the opera in about 30 minutes. There are shops and public transport stops nearby.
I recommend this apartment to anyone who plans to stay in Vienna :)