The house is literally steps away from Plaza Real in the Gothic Quarter of Barcelona. It has 3 spacious bedrooms and is a great base to do all your Barcelona explorations. It is also a short 5 minute walk to the Green Line metro which makes exploring very easy.
Klaus was very helpful in meeting up with us, and giving an overview of the area and what are good restaurants to try. He also stocked the fridge with some beer/water/milk and had a big bowl of fresh fruit - a nice touch to welcome you to his home.
I would recommend this place if you want to stay in a good central location.