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 consistent criticisms regarding the age of the ship, food quality and variety, crowded venues, and some issues with cabin comfort and amenities. Entertainment and activities are generally appreciated, though some found them lacking or repetitive. Excursions are often described as overpriced, and internet connectivity is noted as unreliable. Overall, the cruise offers good value for the price, especially for those prioritizing destinations and service over luxury or gourmet experiences.