I've gotten to Chapter 5 (the last one) soo far, and I must say, if you haven't play this game yet, you definetly should. I was really close to turn off and throw the game away after the first battle, since it seemed like a "click on your enemy to auto-attack until he dies", without any tactics or skill involved.
The fighting system evolved much more since that first fight, with using silver weapons against monsters, steel against humans, three different styles of fighting (heavy, quick, group) and a myriad of spells and potions to exploit in combination with the melee bashing.
There's also a glossery that gets filled with information about monsters (their occurences, attacks, weakness) as you read books in the game, and there's also a really well-made alchemy part of the game.
But all of this means nothing to what really makes The Witcher special. It features moral choices that aren't drawn out to be good or bad (you're the one to judge), who have actual consequenses that changes what occurs to your character and the people around him, further into the game.
Once I've played this one through, it's going to make it to my top 20 list. And then I'll get started on Dead Space, Fallout 3 and Fable 2 :)
The Witcher sells 1 million in a year, hints at console futureThe Witcher Enhanced Edition