We went with our adult daughter and are planning to do it again. My son (21) wasn't with us and wants to go on our next trip. It's fine with or without kids. We did the later show, and most people around us were adults. Yes there were kids, but it seems like most of them must have been at the early show because there wasn't a huge amount of kids at our show. We had a wonderful time. We were celebrating our Anniversary and they played "The Hawaiian Wedding Song" and asked all couples celebrating anniversaries to dance. Very nice and a great memory. I think you will have a good time.
Enjoy The Magic!!!