Explorer of the Seas receives generally positive reviews for its friendly staff, enjoyable itineraries, and family-friendly atmosphere. Many guests praise the service and cleanliness, though some note the ship is dated and in need of refurbishment. Food and entertainment receive mixed feedback, with some guests delighted and others disappointed by quality or variety. Crowding and issues with excursions, water quality, and internet are recurring concerns. Overall, the ship offers a solid cruise experience, especially for families and first-time cruisers, but may fall short for those seeking luxury or the latest amenities.