Oceania Riviera receives high praise for its exceptional service, outstanding food, and beautiful ship quality. Most guests highlight the attentive staff, luxurious accommodations, and overall relaxing atmosphere. While the majority of reviews are very positive, some guests note issues with excursions, internet connectivity, and occasional inconsistencies in dining and entertainment. The ship is especially recommended for those seeking a refined, low-key cruise experience, though some aspects like excursions and specialty services could be improved.