We've stayed at the CBR twice and really enjoyed both stays. The rooms at the CBR are larger than the other moderates not by much but every little bit helps.
There theming of the resort is awesome. Each village has their own white sandy beach and quiet pool. The island in the middle of the lake provides a nice little spot to have a picnic.
There's nothing like hearing tropical music while you sit in a beach chair or lie in a hammock. You can even see the Epcot fireworks from some spots around the resort.
Your kids should enjoy seeing the bunnies, birds and lizards that skirt around the resort.
The bus service was great both times we were there and the CBR doesn't share with any other resorts.
The food court had a nice selection of foods to choose from at all three mealtimes.
We loved shopping in the store. Lots of pirate and beach themed items as well as the traditional Disney merchandise.
Hope this helps in your decision making process, Lisa