Seems like a pretty good deal, so how has this progressed since launched? There was a lot of anger with it's condition when it came out, lots of bugs and poor performance, but it's had some 6 months of patches now, so how has it fared?

My system specs for info:

Q9400 @ 2.66GHz
4Gb DDR2 RAM
XFX Radeon 5870 1Gb
Assorted hard drives etc

Is it likely to run at a reasonable rate? Worth investing for the future when it's had a bit more patching? Be interested to hear what anyone who has the game thinks.