CN was filled to capacity when we were there for the first time in Apr. 2009. Service was incredible. Food was incredible. The resort never felt crowded. We never had to fight for a place on the beach, or wait for drinks at the bar, or stand in line for any meal.
That is one of the wonderful things about the Couples resorts, is that they are not resorts that have thousands of rooms, which contain thousands of guests, so with that, even when the resort is at capacity, you will not feel crowded or slighted in the least!
What everyone is saying is true! It never enters your mind that the place is filled to capacity. It just has the perfect atmosphere. You get to meet great people and yet at times you can be all alone too. Oh, you are going to love it!