We just got back from sandals dunns river on 8-15 and every bad thing you have read is correct. The rooms do smell like mildew, and there was mold growing up the sides of both pools. Not to mention the people are rude. We stayed in a suit and the construction next door started at 6:30am everyday. On the six day of our stay we finally asked to be moved even take a lesser room, and was told we didn't complain enough to be moved. We then decided to move over to the Royal Caribbean, the resort was great and the staff there was wonderful.
I too had been to dunns river on a prior trip that is why I return, but I was very disappointed this time. I love Jamaica and will defiantly go back, but sandal dunns river is highly doubtful
Jen