The Ruby Princess receives generally positive reviews for its service, cleanliness, and itineraries, with many guests praising the friendly crew and enjoyable excursions. However, there are notable criticisms regarding food quality, entertainment variety, and some aspects of service and value. Some guests also mention issues with crowdedness, internet connectivity, and the increasing prevalence of extra charges. Overall, the ship offers a solid cruise experience, but there are areas where improvements could enhance guest satisfaction.