We stayed at Sanne's place for a month and it was perfect. The house is beautiful: bright, spacious, clean, and beautifully decorated; we immediately felt at home. The kitchen is huge and fully equipped, we loved cooking on the plancha and chatting away with friends on the terrace / garden (which is partly covered, so useable in all weather conditions). The bedrooms are all similar sized (all big) with comfortable mattresses, and each comes with a built-in wardrobe. The bathroom is very stylish and has a large walk-in shower. Finally, there is a separate laundry room with washer and dryer (not pictured). I honestly cannot think of a single area for improvement.
The village of Mouguerre (that we didn't know) happened to be perfectly situated to explore both the Basque region and Les Landes. Bayonne is a ten minute drive away, beaches of Anglet and Biarritz 15-20mins. In town, there is a bakery, grocery shop, pizzeria and a fantastic little cafe/wine bar (Chez Carolina) close to the house.
Finally, Sanne is the best host you'll ever meet. She was very easy to communicate with before arrival, and once we got there she was extremely helpful and generous. As we stayed for a while, she gave us all sorts of great tips on everything from restaurants and places to visit, to surf and bike rental.
All in all, we had the most wonderful time and would wholeheartedly recommend staying at Sanne's place!