Well, what can I say. I just finished it and loved it the whole way though.
It's fairly hard to get into since you've got to fight mutants near the start and your weapons aren't great, your knowledge isn't high either and trust me when I say you need to understand the enemy in this game.
Once you get into the swing of it it's an amazing game, you'll need to learn how to collect artifacts too which the game doesn't actually tell you so if you get stuck on that feel free to post in this thread asking.
I'm just waiting for Artist Pavel's Complete mod and then I'm going to play it all over again with better graphics
Also, to save you money NEVER give anything away. You'll get told by bandits that they've got an injured brother and need an artifact or that that weapon you've got is actually theirs.
If you haven't got this game it can be purchased from Steam for only £19.99, well worth it in my opinion.
If you've got eyefinity this game will be quite literally insane, the landscape panorama in this game is second to none.
In short I'm going to give this game a 92/100 and recommend it you.