I must say I really underestimated this game and it's depth.

This isn't simply a challenging RPG where you can fight tough bosses and loads of enemies, this game actually primarely focusses on discovery and exploration. Yes fighting is very important and you can't beat the game without it, but if you only care for the enemies you miss 60% of the items, NPCs, Questlines and more.

And while the game is challenging, it's also "fair" you have quite a lot of possibilities and there's a lot of "cheese".. big tough enemy that you just can't hit more than once with your sword? No problem, just buy a bunch of throwing knives or arrows and deal with it from afar.

Also this game has hands-down the best replay-ability of all games of this type, most games that tend to be very replayable have either user-created content/gameplay and/or a lot of branching content, story and mechanics to explore, this game is the latter.

... but no matter how frustrating this game gets, you'll come back for more.