I have been on three carnival cruises..............I am 15 now and I went when I was 6, 13, and 15. I have been on the Celebration, Fantasy, and Sensation. There are five people in my family and we always fit into one cabin just fine. Since there is so much to do, you never spend time in your cabin. So the size and comfort doesn't really matter. Your children will have plenty to do, especially on a bigger cruise like the destiny. I recommend Carnival to anyone. Everything about it is great.