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TL;DR: Entertaining, but not better than canon. Also, beware unmarked spoilers.
I could go on for hours about this, because it does have a lot to it, but I'll start with the positives:
The author is clearly knowledgeable about most SW tech, takes care to remember that Ron and Dumbledore are good but flawed people, has fascinating ideas for how Ahsoka would adapt to Earth-level tech, and puts effort into making sure the story makes sense within its own rules. The mechanics of how things work are detailed. And while it's subjective as all get-out, it is a very enthralling read.
However, now we come to the negatives:
Fanon, Fandom-Specific Plot, and Infinite Supplies abound. The last one in particular is especially bad because at one point Harry and his allies begin rolling out huge numbers of vehicles equipped with repulsorlifts; while they are said to "have factories", there is no explanation for how they managed to recreate the engineering process with Earth-level tech, given that they are usually made near black holes. Power levels are all over the place depending on the story's needs (Dumbledore gets defeated by Umbridge and Lucius Malfoy. Easily). Parseltongue goes from being rare and shunned to "we've got a guy for that". The Philosopher's Stone gauntlet gets breezed through by a movie-only spell (which, admittedly, was amusing the first read-through), despite everyone in charge of setting the gauntlet up being well aware of said spell. And perhaps most disappointing of all, while we get to see the characters and technology 'advance', we don't really get to see them 'grow' (not helped by two HUGE timeskips).
There's plenty more to say; again, the story has a lot to it. But word limits being what they are, I'd say this: it is a fun read, and I don't mind going back to it again. However, do realize that for all the fun spectacle and interesting ideas within, it might be best not to look too closely at the components.
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