Rainer's apartment was great. Very central and a short walk to westbanhof station. The area itself is quiet and I felt safe the whole time.
Rainer is a great host and met us at the station where he led us to the apartment. The apartment was clean and the bed comfortable. There is free nespresso to be had and also a guidebook of Vienna from Rainer's perspective. The wifi was fast and stable.
I highly recommend this apartment and would easily stay here again!