I really liked this! The dialogue is (to me) a rather charming mix of more serious, either introspective or philosophical leaning dialogue, and some more lighthearted gags and 4th wall breaks (I'm not always a fan of them, but they work rather well here, I feel).
The Ace Attorney crossover works fairly well; the whole evidence system is definitely simplified compared to the actual AA games, and that works quite well for a game of this format.
Also, a minor note, I quite like the fact that Marisa appears fairly well-read. It's a take on her character that makes perfect sense, seeing as she's a book thief, and yet one I rarely see done. And as a maths student myself, the "hearing something and then making an analogy to something more abstract in mathematics" is just oh so relatable, lmao.