We just got back from our Rome round trip on Navigator of the Seas. Our family consists of parents and 4 kids aged 14 to 19.
Its our third cruise and I used Cruise Critic frequently during our planning stages. I should also say that we are frequent travelers- and mostly not cruises.
Depending on what you like and what your expectations are I should say that we found this ship too big, and our fellow passengers not to our liking.