We had a very pleasant stay at Rudolf's apartament. Everything was super clean and just as seen in the pictures. The apartament has everything you could ask for and even more to make a stay comfortable. Also the location is perfect, just 5 minutes from Metro Pilgramgasse station and 25 minutes walking from the main Old City attractions, which is very convenient. The only minor downside is the noise from the Cafe Quadro, wich is just by the windows. However, if you close the windows, you can't hear anything and they close at midnight, so it wasn't a problem for us. If we visit Vienna again in the future, we would love to stay here again!