I guess your mileage may vary. The characters you deal with the most are fine. I think my issue is that almost all the dudes look tough but sound like accountants moonlighting at the local improv. Like no one really feels battle hardened.
It doesn't totally ruin the game because I just skip through dialogue, a lot of which is extraneous and redundant.
The game play can be fun though and killing giant machines can be a blast. I like that there's really more than one way to skin a cat. Laying traps, being stealthy, that shit is fun.
I've only got two major complaints. One is clipping in combat. Like if I'm hiding behind a pillar and the monster is on the otherside - I think it's shitty if I die because it uses its pounce attack and clips part way through the pillar to kill me. That shit happened a lot early on.
The other is a lack of LEDGES. There's so much to explore and I hate that there are a ton of flat ledges that you can't jump and latch on to. This comes up way more than I expected. Like unless it has a white worn edge or it's yellow rope, you can't grab it. Bullshit.
Not as fun as say Shadow of War or Spider-Man, but it does some different shit, and the story concept itself is very interesting and overall I am enjoying myself. It should also be noted that because of how open it is, it's totally possible that the shit I'm complaining about is something you rarely struggle with. So it could be even more fun to you.