I consider the Season One episode The Storm to be the best episode of Avatar: The Last Airbender. This episode seems to be Season Three's answer to it and it actually does a great job replicating what made The Storm great.
It's not obviously clear what Roku's point was in showing Aang this story but it becomes apparent after watching the later episodes. On the other hand, Iroh's motivations for telling Zuko the same story are abundantly clear.
I like how Zuko and Aang's parallel reactions to the same story evoke their own parallel backstories from The Storm. I also think Fire Lord Sozin (as portrayed in this episode) is the most well-written villain the show has ever given us and I like the backstory of Sozin and Roku.
All in all, it's a great episode of a great show.
It's not obviously clear what Roku's point was in showing Aang this story but it becomes apparent after watching the later episodes. On the other hand, Iroh's motivations for telling Zuko the same story are abundantly clear.
I like how Zuko and Aang's parallel reactions to the same story evoke their own parallel backstories from The Storm. I also think Fire Lord Sozin (as portrayed in this episode) is the most well-written villain the show has ever given us and I like the backstory of Sozin and Roku.
All in all, it's a great episode of a great show.