Nice, cosy and clean apartment. Although the apartment is quite a distant from the city centre, there is a train station that is walking distance (8 mins walk) from the apartment.
Sandra, the housekeeper, also gave good suggestion on getting the city travel card during our stay in Vienna as it allow us to travel to different parts of Vienna during our stay.
Apartment is also close (5 mins walk) to a nice Pizza place (John Pizza) which sells nice and affordable Pizza for lunch and dinner. There is a convenient store that is walking distance (3 mins walk) from the apartment too.