Not so fun
This is another early appearance of the Legion of Super Heroes, and unlike other appearances, this one follows more along the lines of a traditional comic story. It is within that framework though, that the story fails so miserably. There are so many conveniences in terms of plot here that there is little of value left to the story. The headlining villain is quickly dispatched, leaving behind a different group of villains, and this even contains what must be the easiest escape from the Phantom Zone in the history of comics. Additionally, this story contains none of the other "firsts" that earlier Legion stories contained, making it even less interesting from a historical standpoint.