This is the best possible location in the heart of the Altstadt Wien! Everything is exactly as indicated. The only thing to note is that early check-in and late check-out are an additional 20 (1 hr) 25 (2 hrs) € Euros that are charged when filling out the mandatory check-in form (with passport details etc).
Otherwise, this is highly recommended. I would return any time and recommend it to anyone and everyone visiting Wien for work or pleasure