I just got it a little while ago and can run things on Medium with everything still looking pretty good once you get used to the pop-up. And if you run on low settings it looks worse than Far Cry, which runs silky smooth on my computer

But OH GOD the bugs. There was one part where it was pure plot - no combat and I killed myself three times. Once by picking something up, throwing it at a wall and having it hit me, once by a friendly NPC moving a tank when I was right next to it, once by activating speed and running into a tank.