I think that you've made an excellent resort choice. We have stayed at the CBR 8 times now and have a 9th trip coming up in May. The resort is large but not so large that you can't walk to and from your building to Old Port Royale (main pool, food court, store, etc.). Our longest walk was about 6 1/2 minutes and that was from one of the furthest Barbados buildings.
If you have any time to spend at the resort, I highly recommend lazing around in the hammocks or beach chairs or renting a bicycle or surrey bike from the marina. The resort is absolutely beautiful and the bicycles are a nice way to see the rest of the resort.
I have a lot of pictures of the resort in my trip report if you want to have a look around. Just click on the link in my signature below. There are chapter links in Post #8.