Symphony of the Seas receives overwhelmingly positive reviews for its impressive ship design, wide range of activities, and exceptional service. Guests praise the entertainment, food, and cleanliness, with many calling it their best cruise experience ever. Some negative feedback centers on occasional service lapses, crowded areas, show cancellations, and inconsistent food quality. Overall, the ship is highly recommended for families and groups seeking a memorable vacation, though a few guests note that the large size can lead to crowds and logistical challenges.