Christophe's place is really good, ideal for a week long stay for two people. Maybe 2 adults and 2 kids too as there are 2 sofa beds, a large centre table and 4 chairs to match. There is enough storage space for two people's luggage goods but, really, any more than two would be a little crowded especially if you have packed for a week or more.
If you value floor space and room to relax with your family then this place may be a little tight but again for 2 it is great, and absolutely great value for your money - the price per night is just right.
The location is just great too, with a bus stop only a minute walk away that can take you to the airport, and to the slighty farther away towns of Anglet and the marvellous Bayonne at only 1 Euro per person one way! The ocean front in Biarritz is a ten muinute walk from the flat and all the main streets for shopping and wondering begin pretty much as soon as you leave the flat, which includes restaurants too. Perfect!
If you check Christophe's description, the accuracy of all he describes and includes is right on the money and exactly what you get, so the choice is yours!