Overall, I think people should watch it. It is much darker and introduces new themes into the show. It also brings new concepts and continues to world build.
However, the characters are never developed, and they also never seem to learn their lessons. It makes for an incredibly frustrating experience.
And while the show had four seasons, everything felt rushed and forced. Whether it’s bending, relationships, or conflicts, everything felt incredibly awkward.
In conclusion, this is an ok show to pass the time with, and if you want to learn more about the world of Avatar, you should definitely watch it. But don’t expect characters to be extremely lovable. Also, don’t expect the plot to be excellent.
It feels like a filler tbh.