The Norwegian Sun receives mixed reviews, with many guests praising the friendly and hardworking staff, enjoyable itineraries, and good value for the price. However, there are recurring criticisms regarding food quality and variety, entertainment options, ship age and maintenance, and occasional issues with crowding and cabin comfort. Excursions are often described as overpriced, and some guests found the ship's amenities lacking compared to newer or larger vessels. Overall, the cruise is seen as a good value for those prioritizing itinerary and service, but may disappoint those seeking luxury or gourmet experiences.