The character drama is incredibly raw, the band butt heads, argue, fight, scream, cry, make up, and go on. Girls Band Cry isn't afraid to show characters be rough and insensitive, it never tries to portray the characters as perfect, right, or anything other than human. The MC in particular is masterfully written - she's a shy, insecure teenager out on her own, and she gets no pity from the show. She's an angry, wounded animal, she lashes out at others, she lashes out at herself, she lashes out at the world, and is often doing so unfairly, to the detriment of both her and everyone around her. Through her, the themes of the show take on a different color.
It's about staying true to yourself, and not letting others get you down or hold you back, but not due to some lofty dreams or high ambitions but as a pure, unbridled show of spite to everyone who's wronged you. It's about the sense of freedom that comes from expressing yourself, and the incredible catharsis that comes from understanding yourself and flaunting your flaws to the world. It's about flipping off the world and saying "I'm right, you're wrong, and you can't hurt me anymore".
The anime is mostly CGI, with 2D for backgrounds and background characters. The animation is incredibly expressive at times, especially during the performances, but often also during normal character interactions. The worst of it still ends up looking pretty great, though it's not always very exciting. The VAs for the main cast are all rookies in both voice acting and music, they were put together in a band specifically for this anime. You can definitely feel they're rookies at times, but it feeds into the setting very well.
At the time of writing this, the anime is not licensed in the West, something that feels genuinely criminal for the insane quality of the show. Do yourself a favor and find a way to watch it, and make sure you don't stumble on a machine translated sub.
