The Norwegian Sun receives mixed reviews, with many guests praising the friendly and hardworking staff, enjoyable itineraries, and the value of freestyle cruising. However, there are recurring complaints about food quality and variety, ship age and maintenance, crowded venues, and inconsistent service. Entertainment and activities are generally appreciated, though some found them lacking or repetitive. Excursions are often described as overpriced, and some guests experienced issues with cabin comfort and ship cleanliness. Overall, the cruise offers good value for the price, but expectations should be managed regarding food, amenities, and ship condition.