4 of 5 Stars.
Gameplay is very much improved--best in the series by far.
Engine looks better.
Artifact hunting is fun and rewarding.
Equipment upgrading is great.
Economy and pacing feels right.
It's a Stalker game.
Not quite as atmospheric as the first game CoS.
Dialog and interactions feel off.
I never got much of a sense of story.
Character animations can be wonky.
Despite some negatives, Stalker gives you a vibe that no other game can. Go play it!