Awesome soundtrack with the series' trademark mix of eastern and western music, but 'Korra's' music is more rocky and jazzy, to match with the show's tempo, than 'Aang's' smooth and calm scores. Beautiful, intricate and unique environments, with lots of fluid and well-crafted motion. Visually, like 'Aang', this show is stunning.
That makes it a lot of fun, and a very exciting show, but at times it also makes it hard for me to warm up to the cast, and hard to just take a moment of contemplation, peace, and relaxation like I would with The Last Airbender. Compared to Avatar: The Legend of Aang, this sequel has its own appeal: it's really energetic, featuring mostly city environments, has an older cast than the one in Aang, and just has an overall faster, flashier and more forceful pace than its predecessor.
The Avatar is back and this time she is a teenager who is far from calm and peaceful.