Andrei is the perfect host and this location is a very special one: Beautiful, modern architecture, loving and cozy furnishing, amazing view over Vienna’s rooftops, very quiet but in the middle of one of Vienna’s most fancy areas (Naschmarkt is very near and it´s only a few minutes to the center with the Subway).
The only thing to keep in mind: You should go there with someone you really like, because this apartment is a "One-room-only" (except of the toilet, of course). And: It´s in the 4th floor without elevator. So if you have problems with climbing stairs or prefer to travel with heavy baggage - this one is not yours.