We stayed at Georg's place for 2 months, as we moved to Vienna from the US in the middle of the pandemic and needed a place till we found one of our own. My husband and I had to move with our two cats and Georg was very accommodating and very nice to our cats too, even though he didn't meet them! Overall, he responded very quickly to all our questions and was available despite all of us being in lockdown.
The apartment itself is excellent, bigger than it appears on the photos. We loved the very stylish art and decoration that was there, and it was super comfortable for two. The kitchen is very well equipped and there are many supermarkets and restaurants nearby for all food and other needs. Although I didn't know the city before coming, I realized that the location was unbeatable -- the street has a large number of very cute independent stores and is rather hip, it's very close to Naschmarkt, and you can walk to many parts nice of the city or easily take public transport (there's a bus stop right outside).
We really loved the place and recommend it highly to anyone coming for a visit or for a long term stay.