We really liked staying at Inge's place in Vienna.
The appartment is close by a metro station, so it was easy getting to the center. The kitchen is very well equipped and everything was very clean.
We were with 4 grown people, so it was a bit small. Also with the heat outside (it was very hot when we were in Vienna) it was very hot inside the appartment. Despite these things we really liked staying in the appartment. Vienna is a beautiful city!