Caught this over the weekend and I think this is probably a controversial opinion but I actually thought the Broadway Great Gatsby works better in terms of musical storytelling (if you disregard the source material), though this suits the themes of the novel better.
My main gripe is probably that the score doesn't really work as a musical score for me. I'd love to listen to the songs again because I think there are some interesting things being done musically, but so many of the songs operate as a character standing alone on stage singing about their life and feelings, in a way that comes off as telling rather than showing. The only song that I felt really took advantage of the musical theater artform was Wolfsheim's song, which gave Gatsby's history, though I think What Will We Do With Ourselves? and What of Love, What of God did come close. Meanwhile, I thought Solea Pfeiffer's Driving My Way was the standout performance of the show--if they release a single from the score I think it should be that one.
The book seemed to juggle a lot of really complex themes, and it definitely brought out some themes and parallels that I hadn't considered from the original novel too, but many of them felt half-baked and that they just didn't quite have enough focus on what they were trying to convey. I think part of that comes through also with the costuming and the much-talked-about rust stains at the bottom of everyone's clothing. I thought that could've been a really interesting commentary, but not only did they not address it, but I don't think it was applied in a way that made sense (because it's never directly addressed, it's hard to tell exactly what it denotes, but there were some characters I felt should've been "clean" and they still weren't, so it ended up feeling a bit more perfunctory and just there to serve a purpose that the creators themselves didn't fully think through).
And along those lines, I think they were grappling with so many of the themes they wanted to tell that the characters never seemed fully formed to me. I always felt like I had trouble getting a sense of who they were and how they viewed their relationship with the other respective characters and really just understanding why they acted the way they did. And granted, it's difficult when you essentially have 4 leads (6 if you're generous, but I thought Jordan was so sidelined she might as well have not even been in the show). Nick is portrayed as gay, but it felt a little bit like "to what end?" because you see him sort of embrace his sexuality for one moment and then it disappears for the rest of the show (along with his attraction to Gatsby), similar with a trait that's revealed about Gatsby near the very end--it just felt very random and kind of tossed in, though I could see a way where the show puts both of these things to more effective use.
Myrtle gets the biggest facelift in terms of her role in this story, and she was probably the most realized character (I also unabashedly love Solea Pfeiffer so that plays a part in it too), but there were still situations she was in where it seemed like she was too smart or too shrewd to be stuck there--in a way it felt like she was a character from a different show completely. Though I did appreciate the increased parallels drawn between her and Gatsby, which I hadn't considered before.
As for Gatsby, I think the show tries to straddle the line where he introduces himself to Nick in a similar way as he does in the novel, by acting as just one of the crowd. The problem is that as the audience we already clearly know who he is so there's no suspense or surprise in that, and I don't think they quite sell him as being either calculating or nervous about approaching Nick, so it seems strange that Nick would find him that fascinating off the bat rather than just an eccentric rich guy. I loved Isaac Powell in West Side Story, but here he almost seemed to fade into the crowd too much, even whilst wearing a pink suit, so I really had trouble buying the love story between him and Daisy (though I thought his darker backstory worked quite well).
In general, I think the show lacked a certain sense of drama and forward thrust. The Broadway Gatsby turns it into a melodrama, and while that deviates from Fitzgerald's text, it still makes for compelling entertainment. But in this production, act 1 in particular felt more like a collection of scenes with little throughline, and I found myself pretty apathetic to most of the characters and the plot. Act 2 fares better because it does build to a climax and feels more emotionally heightened, but overall the show still feels somewhat unmoored, which I think a stronger sense of character or thematic commentary (or ideally both) would really improve, so despite overall being somewhat disappointed, I'm still very interested to see where this goes in the future.