Christian and Florence were really lovely and understanding.
We got to St-Jean-de-Luz quite late and they adapted to us. The house has perfect location (not noisy at all, right in the center of town, two steps from the local market and five mins from the beach), it has all necessary appliances, it's completely new and right within a traditional Basque building, which, if you like that kind of architecture, feels like a unique experience.
They recommended us this restaurant, Kako Etxea, which we visited the day after and was great.
Lovely experience overall. Merci beaucoup!