Avalon river cruises receive overwhelmingly positive reviews for their exceptional service, comfortable accommodations, engaging excursions, and overall ship quality. Guests consistently praise the professionalism and friendliness of the staff, the cleanliness of the ships, and the well-organized tours. While most experiences are highly favorable, a few guests noted areas for improvement such as food quality, WiFi connectivity, and some aspects of the excursions. Overall, Avalon is highly recommended by most travelers, many of whom are repeat customers.