Great location, wonderful neighborhood, cute restaurants and bars, and a host that is always around and willing to help.
I would say it's ideal for stays up to a month or a couple of months, especially if you're the type of person that prefers cooking to eating out.
The metro is about three minutes away from the apartment and there are many (different) supermarkets around.
The neighborhood and the block of flats is generally quite, however, bear in mind that the apartment is on the ground floor. You will find many restaurants around, Vienna's bike station (Citybike Wien) is just around the corner (although sometimes there are no parked bikes to use),
It is fully equipped, there's plenty of room to place your belongings, and there's a washing machine as well as a drying loft and a iron.
All in all, if you're thinking about renting the place, don't hesitate, you will not regret it.