We stayed 4 days in Marie's apartment. The check-in and check-out was very easy. It isn't so comfortable for persons, who don't like those stairs to the bedroom. There is a bus station in front of the apartment, but after the sommer-season is the last bus from Biarritz to the apartment at 21:00 o'clock so we must always walk back ca. 25 minutes. But in summer is the apartment well situated.
It was good for a few days.