I lived for two months in Herbert's cozy apartment along with my wife and 2,5y daughter after I got relocated with my job in Vienna.
We had some struggles because of different factors but overall, the place is excellent for some short-term visits and city breaks, but long-term for a small family like ours was a bit challenging.
The apartment is small but cozy, it has everything you would need, was warm during the cold days and nights (below -5C), and is in a good neighborhood with great public transport. You can walk 5-7min to the U4 subway, and go to the city center or take the 5, 31 tram or 5B bus and go to Praterstern or Mariahilfer or the lovely Donauinsel.
Herbert and his wife Ulrike Theresia are great and caring hosts and if you're in doubts about booking this apartment, go for it.