I haven’t been to Vienna for twenty years, but I loved it the couple of times I did go. It’s probably changed a bit. I went with a friend, not a package holiday or anything. We just booked flights and hotels ourselves. We were keen on the classical music associations - Mozart, Mahler, Schubert and many others had close associations with Vienna. We went to concerts at the Musikverein (where the televised New Year’s Day concert comes from) and to the opera.
Food we found rather heavy if we stuck to Austrian menus. I remember one meal that had cream in every course - from the soup to the pudding. We finished up sticking mostly to Wienerschnitzel - which is often made with chicken rather than veal - and Apfelstrudel. We ate in the hotel or at the cheapish Wienerwald restaurant.
We had a lovely coach excursion to the Vienna woods one day.