The apartment was very centrally located. Ten minutes walking to the main square in one direction, twenty minutes walking to the main train station in the other. The apartment itself was clean and very spacious. The host let us drop off our bags since we arrived ahead of check in, and when we did check, we appreciated the wine and little treats that were waiting for us. The portable wifi was awesome - it meant we never got lost! Would stay here again if we came to Vienna.