The nice, straight facade hides the fact that this is a collection of little rooms connected to each other. The lobby is small and makes use if secondary compartments. There is 24-hour service, which is great. Beyond a drinks vending machine, not much is available, and for Vienna visitors, it may suprise some that the market next door, like most other shops, is closed on Sundays and the weekend limits opening hous. This means it's important to get enough drinks and drug store/farmaceutical supplies for those days.
Spacious rooms with, in our case, a separate WC and a small bathroom. Good beds, the bedding is simple but effective. Useful to have nearly a full kitchen available, with all the essential tools to use it. Parking outside is nearly impossible (you have to pay every 2 hours), so pay the extra money for the underground car park.