Dina met us at the apartment when we arrived and made us feel very welcome. She provided us with a self made guide of Vienna which included maps and lists of recommended places to visit. She gave us clear instructions for how to use everything and vowed that she would be contactable at any should we need her.
Prior to our journey, she contacted us via WhatsApp and gave us very clear and helpful directions to her apartment from the airport.
After our initial meeting, which lasted about ten minutes, she was indeed contactable as promised as we needed help to reboot the internet. This was sorted within minutes via WhatsApp.
Her apartment is exactly as described online and was perfect for two people. We had a double bed each (including the sofa bed in the living room). You could certainly have 4 people stay there too.
The location of the apartment is very good, especially if you buy the underground pass. It is close to their nearest underground station, which is on the main line so it is fantastically accessible.
We definitely recommend you stay at Dina's apartment.