Ye-ah. I'm gonna come down and say, try it absolutely, but it -is- fantasy. It's a lovely Polish dark twist on fantasy, absolutely, with racism issues, complex politics, a mutant superantihero with Jedi powers who thinks "adventures" are stupid...but it's still fantasy. Don't look for something that's not here.
However, if you can get yourself out of your genre ghetto and try something you might not usually try, I can tell you Witcher 2 is a great fun crazy romp well worth your time.
I mean, imagine if you were trying to convince someone who isn't that much of a cyberpunk/dark RPG fan to play Bloodlines. You -know- they are missing out, but it's too bad they won't let go of their preconceptions long enough to hunt a serial killer in Santa Monica..who will later give you the -best- melee weapon in a game.
What a loss, eh?