Story/Character: The best parts of this movie are the parts about Kurapika. The scenes explaining Kurapika's backstory and the scenes with Pairo are certainly the standout scenes due to all the emotional baggage these scenes carry for Kurapika. The other decent parts would have to be the scenes with Killua trying to deal with the idea that he will betray Gon. Maybe that's just how it was for me since I had finished the show and already new how that whole 'Killua betraying Gon' subplot played out in the end and was also trying to figure out at what point during the show had this movie aired, and thought they might be trying to set up the solution to that subplot. The worst parts are the new characters. Retz is lame and once they fin out she's a girl she goes from an at least sort of strong character to a complete damsel in distress. She's like a really bad female OC, but not even as good as that. And Omokage is no where near as good as the rest of the troupe. The great thing about the troupe is that they are all characters who have real motivations. Omokage is just like... I want your eyes because they're pretty and I'm evil. And some of the logic makes no sense. Like, Kurapika's eyes have been removed from his head, and yet he can still see through them... What?
Enjoyment: It's enjoyable. The main four are back together and that's enough to make this movie enjoyable. The main four of Hunter x Hunter are legitimately four of my favorite characters in all of fiction, not even just anime, all of fiction. So watching this movie was worth it just to see them all back to together again. And I also believe they have some of the best chemistry in anime, so all of them together is just fantastic, even if the rest of the movie doesn't live up to Hunter x Hunter standards.
Overall, I'd say watch this movie if you're a fan of Hunter x Hunter. If you watched the show and only had a passing interest in it, or didn't enjoy it, then don't watch this movie. You will not enjoy it. If you really liked or loved the show, then have fun! And I'd say this entire movie is worth watching just to hear Kurapika call the troupe the f-word.
