Excellent location with the view on Danube, quite big room, enough space, good Wi-Fi. Road and railway are under the windows. Maybe in summer time with open windows could be noisy. But i grew up near the rail-way - i did not care. Full kitchen with some snacks/tea/coffee and even with detergents. In Vienna supermarkets are closed quite early and sometimes to get in open supermarket for me was a challenge. I did not use these snacks this time but it was good to know they are available. In this place supermarket is around the corner working until 19:40.
Welcome drink was waiting for me (I left candies as a response :)).
If you will be coming for tourism - stops of hop on hop off buses (of two different providers) are at 300 m distance. U-station is at 5 minutes’ walk.