My family went on the Nickelodeon cruise July 24, 2011, and while the ship was impressive, I wouldn't recommend this cruise to others. Most of the staff seems to have been taught the importance of doing their jobs, but do so at the expense of passenger comfort and enjoyment.
First, let me say, the Kids Club was amazing and they did such a great job with entertaining our 3 year old. She never wanted to leave "Nickelodeon School" as she called it. The character meet and greets were well organized and fun. The actors from the Nickelodeon shows were personable, and seemed to be having a good time on board and in the ports as well.
We booked the 2-bedroom Courtyard Villa, and it was ideal for our family of five. The balcony is enclosed because the cabin is in the front of the ship, but that was a plus, as it was a quiet and private solarium. Hallway noise was at a minimum, but we could hear quite a bit of noise from the sundeck above.
Perfect layout for a family of 5, but a bit noisy from sundeck above.