The flat is compact, well equipped and reasonably comfortable. It suited us a couple - not sure that I would want to have a family staying there.
Fabienne, who greeted us, was very helpful and the owner left a list of instructions.
We requested bedding and bath towels but the linen supplied was rather shabby and we had to make up the bed ourselves. (There may have been a break down in communication along the way.)
Location is good, close to the beach and not far from shops, restaurants, the station, etc. The private parking is a bonus.
Overall, a satisfactory base for our stay in Arcachon.