This is a very messy game. Gameplay has 10 different mechanics and characters have 20+ options, but very few of them actually matter (namely deferals, PSY buffs, and Resonance). The story starts in media res, but takes a painfully long time to explain how and why things got there. Outside of the brief exposition from pactbearer ideals, we never get a glimpse of what the characters were like before the anomalies started, which can make their characterization murky. Date's motivations come off as weak compared to the other protagonists, while Nozomi straight up disappears for most of Act 2. Finally, Yoru and the Monark of Woe do not have satisfying conclusions to their stories in Act 3.

However, I still genuinely enjoyed my time with the game. The boss battle music is absolutely incredible, and the character portraits are excellent. The voice acting is generally solid. The gameplay, while repetitive, is satisfying. The characters are generally interesting, with the character chatter in the TSC room doing wonders to make the characters likable. Most importantly, it manages to nail the major emotional beats in its story in a satisfying manner.
Overall, I would recommend getting the game on sale. I would also firmly recommend getting your hands on the album of Monark boss themes.
PS: The achievement to fully level up every character to 99 is completely psychotic compared to every other achievement in the game. It exists to add 10+ hours of rather mindless grinding to the playtime of anyone hoping to get 100% completion in the game. It really should be changed to something else.