The appeal of such a visually impressive movie is undeniable, and well, Sawano will be Sawano, but I went into Promare already expecting these things, and I'm sure anybody else would know as well, so it is more worthwhile to talk about what actually goes on in the film than its already obvious aesthetic brilliance.
Trigger is a studio I am extremely critical of personally, I can't deny this bias (I took personal offense to how Kill la Kill ended and couldn't even get through all of FranXX, wondering how such an incompetent studio could've created the beauty that is Inferno Cop and the original LWA OVA), but even so I was able to see positive aspects in Promare. I am of the opinion that Trigger is a studio which does a pretty good job of wacky comical moments, but falls flat whenever it tries to tell a serious story. The most fantastic example of this imo is Kill la Kill, which was pretty endearing and funny, but then went for this super serious end section which was honestly a complete abhorrent mess that ruined the show overall. While Promare sort of does the same thing, it never felt like it started burning edge as fuel nor completely abandoned its lighthearted vibe. It managed to diffuse a lot of moments that could've become overly serious with comedy, which is well-placed in a film that doesn't go all-in on story and focuses more on aesthetic and atmosphere.
Promare has many moments that are reminiscent of Trigger at their best, with the lighthearted comedy and zany scenes that don't make a lot of sense, like in Inferno Cop or the first third or so of Kill la Kill. Honestly even the more focused storytelling parts don't hesitate to make quips, and while some of it missed the mark for me, I never felt like it abandoned the theme of a light-hearted story full of comedy elements, and never lost its way. But, herein I suppose would lie the issue with the film:
It is clearly quite narrative heavy, and honestly, none of the twists or storytelling elements wowed me by any shape or form. Some of the twists are downright corny and beget a sigh, it falls prey here and there to some less desirable tropes such as deus ex machina, and while the characters were, for the most part, entertaining, most of them other than Galo and Lio remain archetypal.
Overall I think the show succeeds at setting a good mood, is very stylish, has great music placement and animation, but if anything, as a story it's a little uninspired. For somebody wanting something cool to watch, without engaging brain too much, there is entertainment to be found here. Rule of cool overall wins over in my opinion. Also Rukia should've had more screentime. Ciao.