Well, I'm an hour in and surprised to say I'm not yet fully convinced. The environments look spectacular, of course. The soundtrack is as good as ever. It's dishes out the enemy types and weapons quickly and the challenge feels noticeably higher than the last game so far.
On the other hand I'm finding it weird how fucking scarce the ammo is (playing on UV difficulty) from the start, I guess they're trying to promote chainsaw use but I am constantly running out of ammo fighting something I don't have enough chainsaw juice to kill. Hopefully that will improve as I get more upgrades. Limiting you to 16 shotgun rounds feels weirdly stingy with how many enemies are present right from the start and how early you have a full auto shotgun.
Additionally, it feels a tiny bit buggy for me so far. I've already had enemies not drop any health when glory killed a couple of times, I've had a hell knight just... not be glory killable while down and flashing, and I've also witnessed enemies just move at 1 billion mph across gaps instead of playing jump animations.
It also feels really videogamey. Which I guess they were going for, but it's quite jarring, it leans a little too far on the "this is a video game combat arena" versus looking like a cohesive location at times. Like there was a struggle between the level design blockout and the world art team and the world art team lost. It's also a bit cartoony and the story is already baffling.
Hopefully it'll gel a bit more as I play more.
Oh, it runs awesomely on my machine. i5-6500, 1660ti and nightmare settings barely sweating. The V-Sync implementation doesn't feel good at all though, very noticeably input laggy so I'd recommend using RTSS to lock to 60 instead.