Regent Seven Seas Mariner receives high praise for its attentive service, luxurious accommodations, and overall cruise experience. Guests consistently highlight the professionalism and friendliness of the staff, the comfort and cleanliness of the ship, and the quality of included amenities. While food and dining are generally well-regarded, there are some mixed reviews, particularly regarding specialty restaurants and consistency. Entertainment and activities are mostly positive, though a few guests found them lacking compared to other luxury lines. Excursions and ports are a notable area of criticism, with several guests citing poor organization and communication. Internet connectivity and value for money also receive some negative feedback. Despite these issues, the majority of guests would recommend the Mariner for a luxury cruise experience.