The apartment has everything you need for a week long stay (no wifi),the bathroom is a bit old but everything else is fine. The location is really cool, it's right next to a good surfspot and several other spots are in walking distance. The communication with Nicolas was really easy and fast.
Bidart itself is a cute, quiet town with a few nice restaurants, but not much happening. Guéthary and Biarritz are super close. Overall i can recommend.