Painfully mediocre. It feels like a fusion between Breath of the Wild, Nier Automata, and gacha games, but none of the things that makes those games fun. Things like air combos and defensive options are locked behind characters you have to gamble for. The open world is stunning, the music is chilling, the characters are all very likeable and the story is interesting, but it's all held back by a very lackluster game. It would've been better as an actual paid MMO, a single player open world game or just an anime/manga.
The PC port is awful if you want to play this with a controller. The launcher and title screen both cannot be navigated with a controller and you have to manually enable controller support every time you launch the game. It's been out for months now with this remaining the same.