There's a fair amount of copy & paste from the other games.
But it's totally different spin on what we're used to. You don't have guns and rocket launchers, and cars at your disposal. No scopes to line up that perfect headshot from afar. No money, no stores.
Sticks and stones and plants is all you got. You're hoofin' it most of the game until you're able to tame the larger beasts to ride on. Although there are fast travel points to cut down on travel time.
I'm having a blast right now. Far Cry 4 was alright but I hated the damn story. I'm sure you'll like this. Worse thing that happens is that you take it back and get your money back.