The apartment was located very centrally, walking distance from metro and tram. The area is nice and safe. The apartment itself was clean, spacious and had all the needs required for a great stay. The heating of the apartment is very warm which makes it a nice change for the cold weather in Vienna. We didn't meet Regina but she was always very helpful in giving us tips as to where to travel for the Christmas markets, and easy directions to find the apartment. She was also available to answer any questions we had, and she kindly provided us with a hairdryer, shower gel and shampoo, as we were not able to bring liquids with us on the plane.
Overall, we thoroughly enjoyed our stay. We will definitely stay there again!