I've played through most of the game now. First off, this thing is much bigger than the previous titles. I'm over 50 hours in and not done, and I've skipped stuff too then or I'll never be done (devs estimate 100+ hours for a
full playthrough).
It is, however, just as buggy as previous titles. There's all kinds of shenanigans going on and I've had to reload earlier saves at points when quests seemingly broke. Critical bugs like that are, thankfully, not all that common but other bugs are. It also runs poorly (albeit better right now than when review codes were first distributed) despite not being a very pretty game. It's a shame because I'll just go ahead and say I am overall enjoying this. It has a weak start but gradually gets more and more immersive and interesting and feels like a natural evolution of the old titles. Similar, but bigger and better at just about everything. The open world is very large but hand-made from top to toe, no procedural crap here. It's also challenging and doesn't hold your hand, especially on Veteran (the hardest of the three difficulties, which I'll admit was too bloody hard at times). Combat is lethal and when both mutants and stalkers/bandits/whatever gets involved it gets frantic and very, very fun.
This is despite the AI, which I didn't find to be nearly as smart as GSC claims it is. They make poor use of cover (they might use it, but often limbs or such will still be visible, or they'll hide behind material that you'll just shoot through etc), and usually simply stand in the open. They don't care about crossfire and they don't move in coordinated ways, often leaving you with just one flank to bother with if you position yourself correctly despite facing numerous hostiles. This is also because they don't stay on the move much, preferring to stick to one spot. Sometimes the AI is just fucking laughable. I'll give you a specific example. At one occasion I almost ran into a gang of bandits. They started blasting, and I thought it was at me at first. Then I realized it wasn't. I hid, and they kept shooting and shooting. I realized that they were the only party shooting, so they must be facing mutants. But I didn't hear any damn mutants. Eventually I stood up and looked and they're all shooting at something behind a nearby building. I get my gun out and kill them rather easily as I get the drop on them, then walk over behind the building. There, there's a fucking gated garden with mutated rats running around. The bandits had been standing fifty yards away throwing grenades and wasting hundreds of bullets shooting at rats that were STUCK INSIDE A FUCKING CAGE. Wanna know how many rats they had managed to kill? Exactly zero.
I feel like most of this is non-intended and will get worked on post-launch, but we'll see. On the plus side, enemies are all very aggressive and use grenades freely, forcing you to stay on the move which I like. Mutants are where the real challenge is at though. They hit hard and are tough and they provide a varied challenge just like in the original games with some being agile, stealthy cunts, others being tanks, some using the environments against you while others disarm you or maybe they pounce from fifty yards and on it goes. The narrative is decent. You get to make a fair amount of choices and I got the impression that more often than not, they matter. This is supposed to be true for the ending as well, but as I've said I've not gotten there yet. You never know which prick to trust and what people's real angle is. People will try to cheat you, lie to your face and rob you. Some will try to lure you into traps. It's refreshing to get this kind of writing after the horror that was
Veilguard. Speaking of horror, I've also damn near shat myself a few times. All in all a fun but very rough game and if you don't like to get fucked over by bugs you may as well hold off purchase for now. If you've waited 14 years you can wait a while longer.