Celebrity Apex receives overwhelmingly positive reviews for its modern design, attentive service, and high-quality entertainment. Guests praise the ship's cleanliness, spacious cabins, and friendly staff. Food and dining experiences are generally well-regarded, though some guests found certain options lacking or overpriced. Entertainment and activities are a highlight, with many noting the variety and quality of shows. Excursions and port experiences are more mixed, with some organizational issues reported. Crowds and atmosphere are mostly pleasant, though the pool area can get crowded. Overall, the Apex is considered a top-tier cruise experience with a few minor areas for improvement.