We leased Julien's apartment in September 2015. The apartment was fantastic. It was recently refurbished and everything looked brand new with a perfect bathroom and kitchen, it has wifi and a washing machine, it is located 4 minutes from the beach (cote des basque) and the centre of Biarritz. The apartment also has a nice small backyard with a table and chairs with enough space to store surfboards and hang cloths and wetsuits to dry.
Julien was also a great host. He responded quickly to our enquiries and provided everyting we needed.
Therefore I can give my best recommendations to the apartment and Julien as a host.