Celebrity Constellation receives high marks for its itineraries, friendly staff, and overall cruise experience. Many guests praise the service, cleanliness, and entertainment, but there are consistent criticisms regarding food quality and variety, especially in the main dining rooms and buffets. The ship is described as older and in need of refurbishment by some, with occasional maintenance and housekeeping issues. Excursions and port experiences are generally positive, though some find them overpriced or poorly organized. Value for money is debated, with some feeling 'nickel and dimed' by extra charges. The atmosphere is generally relaxed and uncrowded, though some cruises report overcrowding. Internet and specialty services receive mixed feedback. Overall, the ship delivers a classic cruise experience with standout service but room for improvement in dining and ship updates.