I found this game in some of those pawn shops, and I will try it soon. I didn´t realized it was an strategy game, that´s why I wonder to know if these kind of games are really interesting or not... and how difficult it is to play them...

I don't have any experience in Kessen, but it's an intriguing series. I suggest that you read at least some of the GameFAQs review (or any other reviews you might find) before making the decision to purchase or not.

It all boils down to whether you like strategy games or not, really.