The accommodation is clean and comfortable, with good facilities (shared kitchen, showers, toilets). The dormitories are 4-person, with bunk-beds. In terms of location this is a really great spot, a short bus ride from Biarritz city and beaches and about a 10-minute walk from the beaches, bars and restaurants of Anglet. Even though this place is a "surfer's paradise", it also makes an enjoyable break if you are not a surfer (I am not), to relax and explore, and there seemed to be many activities on offer that could be enjoyed for a longer length of trip.
Although there is a code to enter the hostel and rooms, which seems very secure, the access to the courtyard area which connects to some of the dorm rooms leads directly onto the street, and this caused me some concern while staying there. I hope that it can be fixed for future travellers.