Gerti's apartment is a cozy place to stay if you're in Vienna for a few days. It's a big apartment with 3 other rooms besides Gerti's and you have everything you need there, + Gerti's always there if you need recommendations or anything else. The bus/tram stops are very close and you can arrive in the center in around 20 minutes, but the area is also quiet and peaceful. Just pay attention at the heating: the thermostat is in one of the rooms and Gerti doesn't have access to it if that room is booked by guests, so it might get a bit cold in winter if those guests are not at home to turn it on in time or if the temperature in that room is higher and so the thermostat doesn't start working anyway.
Besides that everything was alright, thank you Gerti for having us!