The flat is big, fully equipped, clean and has been recently renovated. There was everything we needed!
The area is super convenient for going to the city center, both with public transport and by walking (Hofburg is 20 mins walking). Moreover, it's directly connected to the Central Railstation (Hauptbahnhof) with a bus (20-25 mins, depending on traffic), which is also extremely convenient. There are shops, restaurants and supermarkets just in front, so everything one may need, it's just at your fingertips!
Last but not least, Guner was a very caring host, he met all our needs in terms of timetable. Moreover, he was very responsive, and communications were smooth and fast.
I can absolutely recommend this place as an amazing value for money!