We sailed on the Atlantica for our first cruise last April on loved it! The ship is gorgeous and we were lucky enough to be upgraded to a suite. FANTASTIC!
Our seven year old daughter met some other kids her age on the Roll Call over on the CruiseCritic boards. We exchanged emails with the parents and they emailed each other back and forth with pictures, etc for about a month before the cruise. Then when they met on board, they were best friends. In fact, except on port days for our excursions, we never saw her. She wanted to spend all of her time in the Squok Club with her friends. It was great because my hubby and I were able to have lots of free time to do "adult" stuff that she wouldn't have been interested in.
Carnival Fantasy - Dec 2010 - Bahamas
Costa Atlantica - April 2010 - Western Caribbean