We stayed in this appartement for 5 days in summer, there was no air conditioning, it was very hot inside.
It is situated in an old building and in general corresponds to the description and quality/price is ok. Some small things/details were broken (the hair dryer holder, the shower and sink after the use left a lot of water), no shampooing, in the toilet there was a smell of cigarettes probably from the building. Very noisy location at night (close to Prater, 7 min walk to the U1).