We've been to CBR and CSR.
CBR - very tropical feel, but quite large. If we return here, we will pay extra for a preferred location so that we can stay closer to the pool and food court. Also there are no elevators here, so if stairs are a problem, ask for ground floor.
CSR - also tropical...hammocks, water, etc. We ended up in Casitas building 5. The Pepper Market is near Casitas so we were close to that. The Dig Site (main pool) was not too far of a walk. Preferred here is Casitas 1, 2, and 3. Also there's a new club level which I think is in the Cabanas. CSR is smaller than CBR. There are only 3 villages here (Casitas, Ranchos, and Cabanas). We did not have any trouble with bus service. However, bus stop #1 is the last stop so buses could be crowded at that stop. We used the bus stop near Casitas building 2 most of the time. My husband said the pool here was warmer than the pool at WL. It is a convention hotel, however, we never really experienced any of that. We saw an occasional person or two walking in a suit. It didn't affect our stay or the rides on the buses.
We enjoyed the restaurants at both places for breakfast. As usual, it's less busy the earlier you get there.