Small accomodation, but has everything you need. In a good location. Bathroom and kitchen has everything you need. It does get warm in the apartment and there is no window, so this might bother some.
For the price I think it is a decent accommodation and the host had good communication. I would recommend for any traveller looking for a good and cheap place to sleep and explore Vienna. It's definitely not an accomodation you want to spend your whole day in, but if you are used to student dorms this won't be much different. The private bathroom is a huge plus though !