The Holland America Line Rotterdam receives generally positive reviews for its beautiful, modern ship, friendly and attentive staff, and enjoyable itineraries. Guests praise the food, especially in specialty restaurants, and the overall cleanliness and comfort of the ship. However, some reviewers note issues with overcrowding, reduced staff leading to slower service, smaller cabins, and a decline in food and entertainment quality compared to previous years. There are also complaints about extra charges, mediocre entertainment, and poor internet connectivity. Despite these drawbacks, many guests had a relaxing and memorable cruise experience.