I have never stayed at CSR, but we just returned yesterday (01/05 thru 01/10) at CBR and we really enjoyed it. The resort is beautiful, especially as the sun is rising or setting.
Our room was quite comfortable for the four of us (2 adults and 2 teenagers). The room was quiet and clean, Mousekeeping was terrific, and the staff was quite friendly and helpful. We only had one small issue with a counter service staff member but that was handled to our satisfaction immediately by the manager.
We stayed in a preferred room in Martinique, so we were close to the main building.
We never heard any of the construction noise at the main pool. My teenagers enjoyed the pool near our room and did not miss the main pool.
Bus service was excellent. We usually waited only about 5minutes for a bus. Our longest wait was 12 minutes, but that was because the Epcot bus had just pulled away when we arrived at the bus stop.