First few episodes were good, but after the fourth episode it was like what the hell. The writing and storylines were just put together seeing what would stick, character development and relationship was thrown out. Past avatars life's saying friends are liabilities when the original always focus on relying on your friends. Waterbending training scenes were done in a 30 sec scene and later they were Masters. Last battle felt like I was watching a Godzilla movie. Honestly 20 episodes is not hard to cut into 8 or even 10. If they kept to the original they could have cut the filler and use half episode and it would have been a good adaptation.