You know what? I'm liking it. The story is pretty interesting so far, but I know it doesn't get as cool as it could have. The missions aren't too hard yet, and there seems to be a good amount of them. In general, there is a lot of stuff you can do based solely on the map in the game. Similar to Assassin's Creed, there are tower-like areas that show you chunks of the map. They have some challenges scattered around that give extra experience or items. It also marks the different areas that animals roam so you can hunt them.
You could hunt for extra money, but the real use of the animal pelts is for crafting. All the upgrades that allow you to carry more things (items, weapons, ammo, etc.) are made from this menu. It's pretty cool, but can be a pain to carry around all the pelts in case you need them. Probably my second highest complaint is that the inventory system seems small. Items don't really stack, so if you grab a lot of stuff (like me), you eat up a lot of space with stuff you will use in the future. It's not a deal-killer, but kind of annoying.
My biggest complaint is fighting animals. Using guns and stealth kills works wonderfully when against other human opponents, but small animals that run up to you and bite...not so much. It's less a problem with the game than it is very annoying. Plus, if you snipe an animal, they are pretty good about running up to fight you. So I'm supposed to believe that animals can trace the shot? That's nigh impossible, but whatever, video game stuff.
Far Cry 3 is definitely a game I like so far, and will come back to when I have the time. It could easily keep me occupied with the variety of missions and things offered. The level up system is neat, with three skill trees full of skills. Gunning non-animal enemies is fun. The water is a bit scary, since I'm like that, and the sharks don't make it any friendlier. It reminds me a lot of Dying Light, which is a good thing. Playing the game reminds me that I need to play more Blood Dragon as well.