Stalker is an excellent game. It has beautiful graphics and most importantly can run fine on the minimum specifications however its truly rewarding with a good gaming pc. The game manages to create an excellent atmosphere drawing you into it and quite possibly making even the less jumpy players jump at good moments.
It may not offer many new elements of game play to your average FPS but it certainly proves a challenge while i liked this element this may put some people off the game relies on you to use a bit of tactics and cover rather than just run and gun.
Prehaps the most annoying part of the game is the travel times of having to run back to collect quest rewards. The game doesn't have the clearest of story lines as it progresses but if you get the best ending of the game it does give you a very good storyline.