I've lived in Matthieu's appartment for more than 3 month during my Erasmus semester in Paris and I've felt truly lucky about it. It was perfectly located (right in the centre, with a lot of great reastaurants, cafés, shops around - the real Parisian feeling), with the metro & bus lines nearby, and Matthieu was the best host - he was truly friendly and welcoming, always easy to reach if I needed anything. I had the greatest experience possible. :)