MSC Seaside receives mixed reviews, with many guests praising the ship's beautiful design, excellent entertainment, and some standout crew members. However, there are recurring complaints about small cabins, inconsistent service, repetitive and bland food, crowded public areas, and issues with excursions and customer service. Pricing is seen as reasonable by some, but many feel nickel-and-dimed by extra charges. The overall experience is enjoyable for many, but falls short of other cruise lines in key areas.