This comic is so good, I pretty much consider it canon! And that's coming from someone who usually can't stand fanfic. The art is great, the story is wonderful, and even the OC's (and there are a bunch) are so genuinely Avatar that you'd think they were there in the show. Since it is about Zhao, the most of the main characters aren't in it beyond a brief mention, but it doesn't need them—they'd just upstage a really interesting character study. There is a cameo from everyone's favorite sexy young Fire Lord at the end, though.
Good enough to be a print comic, with better art than some indies (I'm looking at you, Scott Pilgrim) with laughs, pathos, foreshadowing... everything Avatar was known for. And it's entirely faithful to the characters. You read it. YOU READ IT NOW.
Very strong Original Flavour. It's also extremely well-drawn (after all, Rufftoon (Johane Matte) was one of the storyboarders of Avatar). Now 'finished', but the author has stated she isn't done messing with Zhao yet.