Hi,
We stayed at CBR way back in 1992.
The rooms, as I remember are somewhat smaller at the CBR than at the CYM. CBR has since been renovated, but I do not believe the room size has changed.
Of course, at CBR the famous Disney theming is ever present.
Both the CBR and the CYM have the bathroom sinks outside the bath area which makes it nice in the morning.
The rooms at CYM are extremely clean, have in-room safes, hairdryer, coffeemakers with a coffee packet provided daily.
Our room had a balcony, which we were able to watch Epcot fireworks from in the evening.
If you stick with the CYM ressie, call the hotel directly and ask for a room with a view of the fireworks. We were on the 9th floor.
CYM has a dining room attached to the hotel which serves a decent breakfast buffet every morning at a very reasonable price. They also have a small snack bar that serves Pizza Hut pizza, various snacks such as donuts, coffee, juice, milk, ice cream, etc.
They will also provide a refrigerator at your request. If you do want a refrigerator, I would have them note it on the ressie.
The staff were extremely polite and helpful.
CBR is HUGE meaning it has an enormous number of guest rooms. They are broken down into "villages" named after the Caribbean islands. You may not have to wait long to catch a bus to the parks but because the resort is so large, the bus takes a some time to make all the individual stops it needs to within this resort.
Dollar for dollar you cannot beat the CYM deal. I was a little bit concerned about the transportation at CYM but it turned out to be great. Busses ran every 1/2 hour, were on time and very comfortable.
We were able to plan some very nice meals in the parks with all the money we saved on the room.
Hope this helps.
Figment