My family and I took the 4-night cruise to the Bahamas, CocoCay, and Key West. For my kids (ages 8 and 5), it was their first cruise experience; For my husband and I, our second.
The ship is absolutely beautiful and in fabulous condition since its recent refurbishment---All of the public areas are in top-notch condition and the staterooms are too. Couldn't find one area that was visually unappealing.
The kids LOVED the Adventure Ocean program and actually preferred to be there instead of with us. This is especially true of my 5-yr-old---She LOVED it!!!! The program coordinators keep the kids very active and very happy. They don't even take a cellphone number or inquire about your plans for the day because they are confident that they can handle anything that comes up. Highly recommend letting your kids try it!