If you are staying in Vienna for a week or more, a rented apartment could be a much better bet than…read morea hotel - both cheaper and with the flexibility of having a small kitchen.
Singerstrasse is very centrally located - more so than most hotels, in fact - and well furnished in a smart, modern style.
So, you will have to forgo a few things you would get in a hotel - there's no gym or pool, for instance, and no room service (but then you do have the kitchen).
Rooms range in size from hotel bedroom to medium-sized apartment. There is also a car park.