We stayed at the Hotel Port-Marine with extended family, 6 of us.
The hotel exceeded our expectations: perfect location on the port of Sète, close to a plethora of restaurant and shopping, its own parking space (which would have been a nightmare without, especially during the heart of the French summer vacations), a short walk from a deep in the Mediterranean.
Staff is very friendly, helpful, and professional. Rooms are clean, functional, and all you need for a vacation stay / resort town.
Breakfast buffet is copious and varied, in a large room with a fantastic view of the Mediterranean sea.
Will return for sure.