I've just finished it on PC. The story and the voice acting were fantastic, and it had a great cinematic feel. The setpieces were really gripping and properly jaw-dropping.
But the graphics and the chugging frame rate really detract from what could have been a phenomenal experience. The dinosaur models were great compared to the rest of the game; there were so many blurry textures that were shoved right in your face and bizarre animations for the characters.
They really nailed the Jurassic Park atmosphere, it really felt like a true continuation of the film canon, it's just a shame their engine couldn't measure up to it.