Excellent location - the district is clean and quiet, with local cafes, shops and church nearby, and it takes only 5 minutes to get to the Rathaus/Museum Quarter by tram. There you can take another tram or bus or U-bahn if you need. Apartment itself is very spacious and clean. Stefan is a very pleasant guy, he met us upon arrival and described everything about the amenities. He also suggested a ride from the airport for a reasonable cost. Definitely would recommend this apartment for a stay in Vienna.