It sets up the history of Kameo: Elements of Power well, however it's a chore to read. It's set up like a Manga, to be read from left to right. However, they reordered all the pages so that it's not 'backwards'. It becomes annoying to read because the panels are still read left to right like all mangas, while you go through the pages right to left like comic books.
It's like they didn't know if people could figure out that Mangas start 'backwards' and go left to right. Then it's as if they got lazy in the reversal process and instead of reordering all the panels they just reordered the pages. Which makes it needlessly hard to follow.
It's a good read though. It really helps with some backstory in the Kameo universe. The artwork is great as well. I don't know, I'd say if you really like Kameo as I did then it's worth it. If not, then I'd probably just get something that's easier to read.
Keep in mind if this was set up in the typical manga layout or even fully reordered like american comics, it would have gotten a 5 star rating, but I really feel that the fact it's so difficult to read brings it way down.