I found the apartment as described. It is a very short walk to the tram, which takes you into the centre of Bordeaux in a few minutes, and also to the train station. For those staying longer, there is a big supermarket around 600 mètres away. It has everything I needed for a long stay.
I found Bernadette to be a great host, and very quick and helpful in her communications.
I would be happy to stay there again the next time I am in Bordeaux.