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. While most feedback is glowing, some guests noted issues with crowds, occasional service lapses, and disappointment with show cancellations or food quality in certain venues. Overall, the ship is highly recommended for families and groups seeking a vibrant, activity-filled cruise.