TL;DR at bottom.
Yesterday I was at Best Buy and saw the Blu-ray on a shelf. I decided to buy it on a whim, as I'd heard of it before and remember it getting good reviews. I'm no stranger to anime, I've seen Lucky Star, KonoSuba, and two of the three My Hero Academia movies. In particular, I enjoyed the MHA movies because of their World of Ham tendencies, and everything there is so over-the-top. So I thought if this film is anything like MHA, I'm gonna end up loving this.
I watched it blind, with little knowledge of the One Piece franchise. All I know is that they're pirates and they ate some fruit that gave them powers (or something like that). Anyway, it had the same over-the-topness as MHA, so that I enjoyed. But I was really surprised at how emotional it was, especially with Uta's motivations and backstory. No spoilers, but there were some themes involving death and the afterlife. I almost cried at the ending, too.
Overall, great animation, great music, and unique story. I might actually watch the series lol. I heard it was the highest-grossing film in Japan in 2022, and I think that title is well-deserved.
Shame on me for not seeing this in theaters when I had the chance!
TL;DR: As a newcomer to One Piece, I enjoyed this film because of its heart, animation style, music, and similarities to MHA.
All spoilers must be tagged!
How far are you in the story?
Also, there's One Pace. I watched it here instead of the official anime. It's edited exactly as per the manga, removing all filler. Give it a try.
If you use Stremio, there's an add-on that let's you watch it directly in the app. Else, you could use the website.
I'm in the Water 7 arc in the manga. They're chasing NR on the train.
In the anime I'm where Buggy met up with Alvida. I feel that's the first filler, but it was still fun. I think it was all the chapter title substory stuff.
I did see One Pace, but I've been taking my time with watching it so I don't catch up to my reading. I'll probably do that if I rewatch.