If you enjoy traversing a huge jungle/desert environment of nothingess, all the while being constantly shot and chased for doing nothing more than possibly breathing some of the other NPC's virtual air then you'll love it. That wouldn't even be that bad on it's own if the gunplay was good but it really isn't, every weapon feels like it's made out of fudge and Ubisoft thought it would be a good idea to add an animation for EVERYTHING.
Open a door? animation of your hand reaching down, while your head tilts down to look at the doorknob. Want to fix up your jeep after it got wrecked by driving into what looked like a small rock in the road? Animation of your player turning a wrench. Want to heal yourself in the middle of a fudge gun battle? no problem, as long as you can find somewhere to hide while the ridiculously long healing animation occurs, especially if you've taken critical damage and are down to your last health.
Which brings me to another point. Despite you being hidden in deep vegetation, not moving at all your enemies still manage to spot you, even in the dark they still manage to be able to see you as if it was in broad daylight and you were doing bloody starjumps in a bright pink outfit or something. In fact, if you hid in an Asda superstore on a Saturday afternoon they would probably find you within 5 seconds. The story? well, you have to kill an arms dealer known as 'the jackal' it doesn't actually tell you why, you just HAVE to do it, despite him having the chance to kill you at the very beginning of the game but he spares you.
The voice acting is terrible, the story is nonexistent, and the devs thought it would be good to give your character virtual malaria. Which basically means every now and then you have to do an incredibly frustrating mission for a random man who can supply you with malaria tablets. If you don't do the mission then you'll die, so much for free will and sandbox gaming huh?
The graphics are pretty, that's about it, the enemies look rubbish though and you'll ask yourself time and time again how they can survive being hit in the chest with 50 cal machine guns even though they are clearly wearing nothing more than a bunch of oily rags.