I have to confess that I am totally unfamiliar with the anime which is the source of this series and so I cannot comment on how faithful this adaption is to its origin. I recognise that for many watchers, the faithfulness of this adaption to its source is going to make a big impact on how they rate it. I can only comment on how enjoyable this is as a stand alone series. To be honest, I really did enjoy this series. The story is strong enough, the effects and the sets are good enough to keep the viewers attention and even to binge watch. The only down side I can see - and it's a big one - is that the acting throughout is awful. The cast seems to have been chosen based on how oriental they look, not on how well they act. It's hard to find a single cast member whose acting talents are even average. The young lad who plays Aang is one of the worst. Half the time, he speaks so quickly it's impossible to understand what he is saying. Thank goodness for subtitles. I don't know if the original anime was Chinese or Japanese (or otherwise Asian) in origin, but this series is pure Hollywood and America. That's definitely not to its benefit.
In short, I enjoyed this but it is seriously flawed.
In short, I enjoyed this but it is seriously flawed.