My sister and I stayed at Lina's apartment during our trip to Vienna and it was perfect! The location couldn't be better, St. Stephans church and the shopping area is literally 5 minutes walk away and the public transportation is also only 5-7 unites walk away - we walked to everything during our stay.
The apartment is modern and super clean, nothing to complain about. Lina is very helpful and quick answering messages. We are so happy about our stay and would recommend it to everyone going to Vienna! You won't regret it :)