Many people have made videos about the Carnival Sunshine. These are a few of the best.
Enjoy the informative Carnival Sunshine Pros and Cons Review by "Mr and Mrs Traveler". Learn the good and the bad from a whole group of people who went on the cruise. They like the multi-tiered Serenity Deck for adults-only, uncrowded areas on decks 6 and 7, and extra breakfast spots. One "con" is that some areas are overcrowded.
Cruise Critic offers a couple of unique videos about the Carnival Sunshine. One is a review of restaurants where you can eat free on the ship. The other is about "can't miss" spots on board (Havana Bar, Bonsai Sushi, the large Serenity area for adults, Aqua Park, and Sky Course ropes course).
Maluna Travel made a Carnival Sunshine cruise review video. See all they did on a trip to the Bahamas. They had never cruised before. Includes scenes from their balcony stateroom, the pool area, casino, meals, spa, shows, and Half Moon Cay.
Joe Somebody offers a video about boarding the Carnival Sunshine. He and his wife flew to the port and bought transfers from the airport to the cruise terminal. Priority check-in was worthwhile. They liked their cabin with balcony. Good tips.