We've traveled in April & November/December (which are also low season like September is). Because of the way the resorts are laid out and the few rooms at each resort, even though the resort may be at capacity it still never feels crowded. Couples knows exactly how to react to whichever capacity they have, making each couple feel special. I wouldn't hesitate to book an April trip. The weather is very nice in April and there are incredible sunsets, especially in Negril.
Juliann & Jeff
Jamaica Soon Come