Sirene Luxury Resort surely has beautiful, modern facilities and rooms for its guests. Staff is friendly and we enjoyed culinary delights. However, as a vivid traveller for business and leisure, I must comment on the main observations from my weekend we just spent. The hotel lacks professional mangement everywhere. Lack of check-in staff, unexperienced Concierge, non-English speaking restaurant staff at welcome desk, no LifeGuard on duty at the beach, no gym instructor available ... Overall, the mismanagement of the core essentials to qualify as 5 star resort are very apparent and is very important to improve, in order not to lose its prestige image.