Many people complain that even though they book 2 rooms at the same time, the people in the other cabin get completely different flights. I hear a lot of stories that grandma, who is older and can't travel alone and is in the cabin with younger grandchildren, they are given a different flight and the grandmother can not handle the young children. Something to think about.
We always book connecting cabins, 1 for my husband and I and 1 for my adult children. I am able to book dining reservations for all of us but when I book excursions, I call. This ensures that we all have a space and don't get closed out. My son, who is in the other room has an NCL account, so I am able to look at it and make adjustments and payment on it and my kids use that account for charges, reservations, etc.