Really? Which media have you seen that suggests this game looks that good? It seems to have a similar problem to STALKER in that there is a lot of detail in every object, but the assembled scene doesn't quite look as good as the sum of its parts would lead you to believe.
It looks nice enough, but it definitely doesn't have the overall impact of those two games. This isn't about hardware either, rather, simple polish. The animation blending, motion blur, and overall scene design is simply unreal in UC2 and KZ2. Metro appears very stiff in comparison.
Hopefully its indoor environments will aid the visuals, however. STALKER-CoP, for instance, looks both fantastic and ugly as hell depending on where you're at. Some of the outdoor terrain bits are just terrible looking and appear more dated than even Elder Scrolls IV Oblivion while certain OTHER scenes are absolutely incredible.
Hopefully Metro runs smoothly on my PC.