This is one of the worst arcs for a lot of reasons. For one, the story of this arc is terrible. Oh, Sanji needs a blood dono but fishmen can’t donate to humans? Oh look it’s Arlong on steroids, literally. Don’t even get me started on how little this arc actually impacts. Hody Jones doesn’t appear later and Shirahoshi is a kind of important character in Reverie but other than that kind of irrelevant. I get that this was an arc to show off the Straw Hats new abilities developed over the Timeskip but I just thrill it was done poorly. The New Fishman Pirates are really weak and I think that the arc was kind of boring and stereotypical. Hody Jones was incredibly weak enough that I think that if it was Sanji in Zoro’s place in that underwater fight in the palace then he would easily win (as it was shown earlier that Diable Jambe functions even underwater and he can user Blue Walk). And the fact that Hody had to use drugs to still be easily defeated by Luffy just shows his weakness. I also think that the setting is kind of bad and ugly. I really think this arc is worth skipping and reading the wiki article for it because it is very uninteresting and has a small bit of story impact. I get that this was to show off the past of Jimbei and the Straw Hats new abilities after the Timeskip but again, it was executed poorly.