We've stayed in Sylvia and Gary year-over-year for some years now, during our annual visit to friends in Vienna. The apartment is clean and bright, well furnished, quiet and located very near several public transportation routes into the central district (~20 mins) as well as Vienna's north- and north-west lying neighborhoods. Handover of keys was easy due to the use of a key box, and since we'd stayed in the apartment before, we needed no instruction. Nevertheless, Gary was on hand to ensure all of our needs were addressed, including the lighter blankets that we'd requested. This is a great little place, and we'll look to stay here again on future trips.