Oasis of the Seas receives high praise for its impressive ship design, abundance of activities, and attentive service, making it a favorite for families and first-time cruisers. Guests consistently highlight the friendly and hardworking crew, excellent entertainment, and a wide range of amenities. However, some reviews note issues with overcrowding, long lines, and a decline in food quality in main dining areas, with specialty restaurants often outperforming the included options. Pricing and extra charges are a common concern, and some guests found the ship too large or busy for their tastes. Despite these drawbacks, the majority of guests report memorable and enjoyable vacations.