Caribbean was built and designed to attract guests who were not looking for deluxe rooms/prices - it was Disney's first low cost hotel option. I think the rooms are larger simply because they were comparable to hotel room sizes at the time. After they probably just decided they could replicate the same room with less square footage. The pool is not how it was built originally. If you go back and look at the old pool pictures you will see they did major changes to it, adding to it considerably. CBR's pool is much better than POR or POFQ because it is newer (except pool hopping is allowed so you get two themed pools) but it's CSR that has the deluxe pool with theme and many amenities within steps. CBR became a "moderate" when they built more, and our opinion is they got it better and better with each moderate built after that. They learned what worked and what didn't and footprint is one of them. CBR is the largest moderate and the only one with no elevators, an interior bus system, front desk removed from resort and no queens until 2015. While CBR has a table service over POFQ, POFQ has way more dining easily accessible with POR and the boat to DTD. CSR is the only deluxe moderate with it's suites, business class, fitness center, spa, salon, more dining options than most deluxe and a business center. The CBR room renovation is the best thing to ever happen to the resort because it had become the moderate used for large group bookings, always with availability and rooms were also less expensive than the other moderates when we would book. Hopefully the new rooms will help give the resort more love but I still wouldn't call it deluxe moderate because that classification comes with amenities not theme.