We just returned from the Zuiderdam (3/20-27). Here's are pertinent information: Husband (37), wife (me 37), babysitter (20), daughter (7), sons (6 & 3). We flew on Spirit from Detroit to FLL, all went well.
The ships decor did not thrill me, nor did it sicken me. It was just not my taste & was not too appealing to me. My husband, commented several times that he couldn't believe the ship was only 2 years old, he didn't think it had "worn" well. But some things were just a shame. In the elevators, there was velvet padding the walls & teens (I'm guessing) would carve their names or initials or "hi", sometimes actually gouging the walls.
I definitely overpacked, since there is free laundry for suite passengers (category S). My husband, 3 year old & I were in 6095 & sitter & 6 & 7 year old were in inside 6081. All on Upper Verandah deck.