Beach is good with a lot of waves but i recomend other beaches, like next in the town - Bosa, Masua, Santa Caterina di Pittinuri and capital Cagliari. In Cagliari i recomend to visit the view from Bastion of Saint Remy. Arborea is big. You have to have rented car or bike or electric scooter in order to comfortably move in Arborea.
Pool is very nice,the hotelstaff very friendly and the breakfast was great.