We stayed at an Ibis in Amsterdam in 2022 and had a nice experience there. When we were planning our trip to Vienna, we saw this location near the train station and were sold. We wanted to be near a train station since we were coming in from Munich and knew we were going to utilize the metro/trains. The location was so convenient and in a really nice area, despite it being across the the street from the hbf. Usually hotels in these areas can be a little seedy, but this was very nice. Vienna overall is very clean and nice city for being so big!
The rooms are small but they have everything you need. Beds weren't the most comfortable, but it was ok. There's an Aldi downstairs across the way and some nice restaurants. It's a 2 min walk to the train station and metros. Price point was good, we stayed a whole week. There's a bar and restaurant as well, but we didn't use it.
Would recommend if you want to be near a train station, which also happens to have a lot of restaurants and shops if you're in a pinch!