Finally got to my house today, wanted to see how long it would take to install on my machine as a buddy of mine bought it yesterday and we waited like an hour and a half before it was time for the third disk. He's on a mac (still not sure what he was on when he made that decision) with an ati card and called me from work to tell me all the problems he's having, such as the texture loading lag etc. Doesn't want to buy another id game again.
Now, onto my experiences with the game. It took about 40 minutes to install, I setup all the configs, drivers, etc to for the highest visuals and booted up the game. I've experienced virtually no texture loading lag, the only reason I ever notice it when it's there is because I was already aware of the issue. It's literrally a fraction of a second if it ever happens and takes nothing away from the game. I'm on a gtx470 with the 8192 textures, 4xantiasliasing, etc with what has to be a constant 60fps. I can't say for sure what my fps is but it's damned smooth and never skips a beat. No tearing or anything, just really awesome performance all around. My card never even goes past 45 degrees.
Regarding the textures them selves, from a distance, especially the canyon rocks and concrete structures, the game looks absolutely stunning. Overall, the guys at id nailed the art be it color, lighting, composition, it's absolutely stellar. Though the color grading is a bit much in some areas for my taste. My only disappointment is how low res everything looks when up close. It's not a huge con for me, I think it helps me focus on the game as well as the art as a whole, instead being amazed at how I can see the wood grain or whatever. Still, prior to release, I wasn't expect such low fidelity on these distances.
Gameplay I can't comment too much on as I've only played for a few hours. I will say that when I exited the game, I was really enjoying the combat and how fluid it felt. Especially with weapons like the Wingstick.
As an added plus, I also received my G930 headset and RAGE sounds flipping awesome. Thanks to Serenius for the tips, btw had very little issues with the drivers and had them up and running in no time.