We stayed for 5 days, and did not cook.
Apartment is clean, exactly like in the photos. Very, very close to U3 Johnstrasse, Lidl and Penny Market.
It's very hot inside and, there are no insect nets at the windows. We managed, but is hard to sleep like this. 27 degrees during the night and you can't open windows. Other than that, I would say it's suitable for short stays.
The building is restored, nice, but high floors and no elevator. It's ok if you don't have a lot of luggage.