After reading some reviews and the high rating I just thought, give it a try. I don't know the games nor the books but as a fantasy show The Witcher is somewhat solid but in no way a masterpiece like many claim: the action scenes are good but the dialogues (like some other reviewers state) are boring as hell and too many, it is really difficult to follow all that blablabla and then you get some more blablabla, most times my mind just wanders away till some action is going on. The time jumping of the storytelling is also sometimes (especially at the beginning and if you don't know the books and games like me) really confusing. Anyway, if you are in desperate need for some fantasy, you may give it a try, if not, don't bother.