Just watched another two episodes.
The reverse-aging premise is ridiculous, and the child acting is, as usual with child actors, pretty rotten. I do think, though, that Tuvok gave a very good performance. I liked the way he interacted with the children.
Funny, creepy, and exciting all at once! I loved the way the Doctor and Janeway interacted with the Clown, and the Clown gave a marvelous performance! A very solid episode.