Harmony of the Seas receives high praise for its impressive ship design, variety of activities, and attentive staff. Most guests found the service, entertainment, and cleanliness to be excellent, making it a great choice for families and groups. However, some guests noted issues with overcrowding, elevator wait times, and inconsistent food quality, especially in the main dining room. Specialty services and extras, such as internet and drink packages, were sometimes seen as overpriced. Overall, the ship delivers a memorable cruise experience, though improvements could be made in food variety, crowd management, and value for money.