The apartment is located in an absolute ideal location for exploring the city as well as doing business. As said in other reviews, the central location brings some traffic sounds, so if you’re a light sleeper bring ear plugs - I am, but didn’t have any problems at all. The building is also very quiet and the area feels very safe, even walking late at night.
Albert and the lady doing the checkin are both super friendly and I felt like I had all the information I needed well in advance.
The washer and dryer are a great plus, WiFi works great, and I’d definitely return if I’m in Vienna on business again.