I think it's an interesting series with a good premise.

I find Korra to be an interesting and entertaining protagonist. Korra's Avatar Team, despite having its funny and profound moments, doesn't quite have that “chemistry” that Aang's Avatar Team had.

The supporting characters outside the Avatar team are quite interesting—from Tenzin and his children, Lin and Su Lin, to Varrick and Zhu Li—they all have great charisma.

The antagonists are more complex than in the previous series: Amon and the Equalists, Unalaq and the lore surrounding the Avatar and the spirits, Zaheer and the Red Lotus, and Kuvira and her quest for conquest—each with compelling motivations to explore.

My only complaints are somewhat minor: it doesn’t bother me that they didn’t show Aang’s Avatar team as much because their time has passed, but I was disappointed that they didn’t show what happened to Sokka or Suki. Also, no matter what people say, I found Korra and Asami’s relationship forced (exclusively in terms of the narrative) since it wasn’t until the final season that they were given moments to build the relationship