Norwegian Sky receives mixed reviews, with many guests praising the friendly and attentive staff, relaxing atmosphere, and enjoyable itineraries. However, several guests note that the ship is older and smaller, with cramped cabins and inconsistent food quality. Entertainment and activities are generally considered adequate but not outstanding, and the ship is often described as more suited for adults than families. Pricing is seen as fair, though some feel there is a push for paid upgrades. Cleanliness and maintenance are generally good, but some issues with air conditioning and outdated furnishings are mentioned. Excursions and ports are a highlight, though some find them overpriced. Overall, Norwegian Sky offers a solid value for a short, adult-oriented cruise, but may not meet the expectations of those seeking luxury or family-friendly amenities.