Just got this, free from the company that messed up my STALKER order, very good of them, as I only asked to them sell it to me at the same price as my original order.
Anyway, loving it so far, though I've only been messing around for an hour or two. Had major problems getting my Gravis analogue pad to work correctly - I couldn't set up the sticks to work in two directions, ie foward = accelerate back = brake. Tried using the buttons, but you can drive with any subtlety as it's all or nothing. In the end I found uninstall the gravis drivers and using the ms default sorted things out and I can now drive properly.
Had a fair few crashes; lock-ups with looping sound, CDT's, reeboots and a refusal to exit to desktop. Also had trouble setting graphic options, as this would also reeboot the PC. Knocking back some of my overclocking has sorted most of these out, even though every other game is rock solid.
So now I've got it all working I look forward to putting in a fair few hours and explore the island...I do love all these sand-box games we've had recently.