Avalon river cruises receive high praise for their exceptional service, well-maintained ships, and memorable itineraries. Most guests found the staff attentive and professional, the food generally excellent, and the accommodations comfortable and clean. Excursions and activities were well-organized, though a few guests noted issues with the pace and suitability for more active travelers. Some negative feedback centered on cabin temperature during hot weather and occasional dissatisfaction with food variety or quality. Overall, Avalon is highly recommended by most reviewers, with many describing their trips as 'the trip of a lifetime.'