Right off the bat, the quality is, in my opinion, strikingly good. At least certainly so for the standards of this site. I've no problems understanding what I read and the chapters have a good enough fluidity that I'm pulled in wanting more. Good quality!
As far as the stability of updates go, I've never cared for them, but it's also a strong point I want to highlight. The author has updated daily and stuck to that statement with the exception of a short period when their focus was on another novel. So a great stability no doubt.
[MINOR SPOILERS AHEAD |:| READ AT YOUR OWN RISK]
The story development is amazing, we see the main character become a master of not only his element but also of himself as a person. He seemingly breaks away from the norm and even goes as far as making his own style and innovating techniques. Hell, the guy can fly using his advanced understanding of his element. The story develops very well, the flow of events is logical and gets you hooked enough to keep reading till the end. Das de gud shiz
The character design is amazing, the main character doesn't just feel like he's a construct of fiction. He's detailed enough to be understood and normal enough to relate to. His thoughts and feelings are often portrayed and written out for us to understand him, it almost feels like I'm growing with him too, as I follow him through his journey. Another great aspect of this novel, is it's authenticity. It stays true to the personality of the canon characters, mainly Master Pakku, his personality is as true as it gets. It almost feels like I'm reading an actual Avatar novel.
The world background is well done, though I myself have watched the series and therefor have no need for such detailed environment, I'm more than certain that those who have not, will have no problem creating the mental image of the scenarios and events that play out.
Over all, I strongly believe this novel deserves a full 5 star review even though it's still in it's beginning stages. I am eager to read more, especially so now, seeing that the author has returned and is putting their focus into this masterpiece here.
And dear author, if you do end up reading my review, please drop a like, or a comment, show me you've read it. It'd mean a lot. Thanks!