My mother and I spent 10 days in Vienna in this lovely and comfortable flat. It is very well equipped and is so close to the centre to walk or get the public transport, which is easily accessible from the flat.
The team who look after the flat and it's guests is flexible and helpful and would do their best to accommodate our needs.
The neighbourhood is safe and has many nice little cafes, wine bars, restaurants and supermarkets.
I would want to stay in the same place if I go back to Vienna again!