Well, enemies are quite tough as well, actually. Bastards (particularly those yellowish giants) don't die even when you shoot them with shotgun at point blank range, lol.
Anyway, another good point of the game, in addition of those all mentioned earler, is that it's possible to get many different outcomes from almost each mission. So replayability is very good. And if you're running a good rig, as I think most of the folk is doing, then the graphics are absolutely brilliant. Previously, when I played it, I ran at maximum, the scenery was like a dream.
However, it's not doing well on 64 bit systems, It was turned nasty as soon as I installed Vista 64 (prior to my transfer to Windows 7 -64) and not improved now in Windows 7 -64, on the contrary to STALKER, which now runs like a dream... what a strange turn of events.
I haven't tried any mods yet, after the patch release, I can go and try some mods, firstly the one that
fatrap released, of course.