An excellent adaptation. Using very clever adaptations and reworking to make a leaner fat free story, not only keeping the messages and themes of the original, but adding many new scenes that flesh out characters and motivations. Azula is in this first season and her inclusion is very subtle and clever, not only adding to her eventual promotion to main antagonist, if season 2 ever comes, but fleshing out her involvement behind the scenes during the first season, particularly in relation to Zhao. Other stuff like where does Zuko's crew come from are excellent additions to the lore.