I bought it and I am checking it out. It's interesting that it does replicate jojo but I do have a few things to point out.
On one hand it does mean you can cover a lot with the moves but doesn't the amount bog it down in a sense? I can image that a gm (especially one who tries out the system) has to glance more than a few times before realizing what moves the players triggers alongside probably missing a few cues by not noticing it. It's the gm that has to manage all the moves after all.
Another thing is the table of contents, the amount it covers is quiet minimal compared to what you actually have, it doesn't add anything to the rpg itself but it would give the pdf a more professional look to it if you would add some more to it.
What do you consider that has to be redone or added to the rpg?