Have never cruised on RCCL. I started out cruising on Carnival and am loyal to them. It seems that RCCL is a different type culture than Carnival with how they do things ie Crown and Anchor, extra charge eateries, etc to me. As a Carnival Platinum cruiser I am familiar with Carnival ships and how they do things. It is a perfect fit for me. I also like my Platinum perks, and how the casino Player's Club treats me as a long time member. RCCL would be a foreign experience for me without the perks. With limited vacation time, I don't want to spend it figuring out how things work and the layout of the ship. I'm there for FUN and Carnival never disappoints in that department. I have no reason to change.