I watched the first episode.
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Something about the tone and animation reminded me more of the original show than the first season of LoK. I'm not saying I like or dislike it, it's just an observation. It looks like Korra has mastered the Avatar state already. That was a little quick. So far I like that this season is focusing on the Spirits, since they were absent from Season 1 and the spiritual side of things was downplayed as a whole. We'll see where they go with it. The ending made me sad.
I'll watch the second episode tomorrow.
Where sky and water meet,
Where the waves grow sweet,
Doubt not, Reepicheep,
To find all you seek,
There is the utter east.