There are so much amazing things happened and so much rocks left unturned. Since this is Xebec and Harald centric story, I give it 7.5/10. I got what I wanted about story of Xebec, it was amazing from moment of his intro towards the end, being a great pirate, powerful, courageous, care about family, etc. But Harald on the other end is straight out giving me the opposite feeling. He went from being an unhinged scumbag to being a weak begging fool and he did it on his own will. Of course it's not only because of the individual themselves but also the environment. The story is showing of two similar characters from the start and then divert into two very drastic path due to their fate/destiny.
It could have been a 9 or 10 if Oda actually shows what we have been eager to know about the rest of the GV. Example the other 7 treasures, we already know about the Paw Paw fruit and Fish Fish fruit, but what are the other treasures which baffled even more of expanding the original 6 treasures to 9. Not sure whether Oda is trying to set things up for the future lore or there will be a GV movie or something, this is just weird decision.
The rest of the Rocks Pirates besides Xebec and the big three are really underwhelming, same goes for Rogers Pirates and God Knights. All of them off-screened. This is bad consider Oda drew the incredible introduction of each factions which ends up nothing happened.
The rest of Rocks Pirates have nothing to do with Xebec being DR and died on GV. Them and Xebec have separate goals, they are after the treasures and Shakky while Xebec is finding his family, it's understandable as Xebec has never told anyone about his family. What's bad are they are not taking part in the main story. Showing some clashes with the God's Knights could have make it better, but who knows...
Whitebeard, Bigmom, and Kaido not being able to realize Xebec is controlled by Imu is the most baffling plot in GV. They are blind/lack of situation awareness or their bonds with Xebec were not as strong as we assumed to be. Whatever it is, It's just bad, real bad.
Roger and Garp are clearly enemies but the GV didn't even have a single panel of them clash. What is weirder is Roger and Garp are already in truce before the conversation of calling it. It feels like Oda changed the story mid way and break the the cohesion, or again some off-screened panels that should have fill the gap.
Rayleigh and Gaban. Honestly I like Rayleigh's little love story even he doesn't have much feat being shown except he sent Sommers flying. But there is nothing to see with Gaban unfortunately. At the end they seems to witnessed Garling stabbing Xebec, did Gaban fought Sommers there? Come on another off-screened.
God Knights are all off-screened, nothing to say about them except them being clowned. Oda is deliberately saving them for Elbaph and MarieJois.
All right, since Loki's flashback is ending, now is the turn for Gaban's flashback, let's go.