Harmony of the Seas receives high praise for its impressive ship design, wide range of activities, and exceptional service from staff. Most guests enjoyed the entertainment, cleanliness, and family-friendly atmosphere. However, some common complaints include crowded public areas, long elevator wait times, inconsistent food quality in the main dining room, and extra charges for certain amenities. Specialty dining and excursions received mixed feedback. Overall, the ship is highly recommended for families and those seeking a lively cruise experience, though some guests prefer smaller, quieter ships.