There was quite a bit of hype around this game leading up to its release and, sadly, it seems unwarranted. Trek to Yomi is a bland beat 'em up with not much worth seeing outside of it's visual style and even that isn't always a positive.
It is, perhaps, the best place to start. The gritty, grainy film filter over the game is pleasant. It gives the world flavour, and it evokes the "Kurosawa" feeling that other samurai games failed to replicate since it actually attempts to simulate grain and film imperfections. It's a nice touch.
The camera, on the other hand, can hurt this effect. At time the camera tries to get artistic, this works sometimes and is an abject failure at others. From simple things, like an angle making a piece of the level obscured not for the purpose of hiding a secret but for making progress tougher to find, I guess? I'm sure that's not intentional.
Other times, the camera gets artsy in an arena, which makes fighting a real pain in the ass. When the angle gets tricky it can be tough to read distance, the black and white can make this tougher too when lights and darks clash and enemies are obscured by background or foreground objects. These are kind of neat visuals, but bad for actual experience.
Speaking of actual experience hoo-boy does this game have very little of that to offer. Did you enjoy killing the first bandit in the game? Do you want to kill hundreds of them, repetitively, over several hours, and the only difference is that they get more hit points over time? If so, continue playing past the tutorial.
I'm being a bit mean, there is some enemy variety, but not much. Maybe six or seven? And that's counting "bandit with sword" and "bandit with spear" as two different entities. It's really lack luster.
Boss fights are nothing to write home about either, most of them feel like they fight dirty (such as a spear wielding demon whose jump attack seems to reach JUST longer than your dodge roll) or they're ridiculously easy. Well, they're all ridiculously easy, just some of them are a little dirty so when you lose you feel like you got robbed or stun locked more than you got bested and learned something to improve upon.
Finally, the story is meh. It plays on a fairy tale, the characters are one dimensional. The honourable samurai, the ruthless bandit, the dead love interest, and they are nothing more than that.
I can't even recommend going in on easy mode for the story. If you've got GamePass I'd recommend checking it out until you get bored, or don't, you're not missing anything. If you need to spend money? Save it, you're not missing anything.