The house is nice and the host too. They respond pretty fast and tried hard to make our stay enjoyable.
This was our 6th vacation in Biarritz and surrounding, compared with the other places we used to stay, we think the accommodation is overpriced (ruffly 4050€ for 8 nights).
It is a basic equipped flat with rather tiny toilets. There was not enought toilet paper, garbage bags and kitchen tools. Things you could expect when renting a house.
However, when you have a problem, they respond and organise quickly (we had the dishwasher to be fixed). What we appreciated a lot.
And please, as mentioned by the host before you arrive, do not park the car in front of the house, not even to unload the car. The neighbor won't be happy ;)