The Island Princess receives generally positive reviews for its service, entertainment, and unique itineraries, especially the Panama Canal and Alaska routes. Guests praise the friendly and accommodating staff, comfortable cabins, and enjoyable excursions. However, there are recurring criticisms regarding food quality and variety, the ship's aging condition, internet connectivity, and some organizational issues with excursions and embarkation. Pricing and extra charges are also a concern for some guests. Overall, the cruise offers a memorable experience with a few areas for improvement.