Ju's place was wonderful. The apartment itself was quite cozy with everything necessary for cooking, cleaning, laundry, etc. The location is great--about a 10/15 minute walk to Karlsplatz, or a 5 minute walk to the smaller Taubstumengasse metro (that goes to Karlsplatz). Ju was very helpful when we arrived, she had lots of resources for finding places to go and thing to do in Vienna, and she always responded quickly to any of the messages we sent her. If you're looking for a place to stay and be taken care of, stay with Ju!