My girlfriend and I decided to spend Christmas in Vienna and we chose Peter's place. It was definitely a good choice and we have only good things to say about the apartment and location!
Peter is very kind and helpful, he had no problems to check us in an hour early as we arrived earlier. He provided useful tips and recommended places around the apartment.
The apartment is clean and have all needed amenities. The high ceilings are also definitely a nice touch!
The location is also very good. You are close to U6 and trams 40/41/42. It is about 30 minutes walk to the centre (and very straightforward to navigate). You have two food stores nearby (prefer the SPAR Gourmet for sure).
Overall, we had a great time in Vienna and can definitely recommend Peter and his apartment.