We had a lovely stay at Zuzanas and Stefan's in vienna. Zuzi was really helpful with us getting in early and getting us orientated and as you can see by the photos she has great taste!
Just as it says on the description it's a cosy room for a couple, short walk from the city centre but far enough out to get some peace, there are a few stairs to climb (nothing insurmountable but be aware when booking)... For our three nights we felt warmly welcomed and rarely got in each other's way. Definitely recommend.