Did the benchmark yesterday and the game is very playable, but I doubt if I still want to go through it the 6th time :dead:
[All settings @highest /W no AA and 16X AF]
However, comparing this one with my X360 version on the same monitor (Sharp Aquos 42" @1360*768 for PC and 720P for 360 through HDMI), I found that heat wave is missing from PC code. You can see it in the first cutscene, but the effect is completely absent in gameplay session.
I also found that a shadow glitch on X360 version still persists.
Though it's not a major glitch and doesn't affect gameplay experience, they should at least get rid of it in retail version.
BTW, do you guys know that if you use multi-core processor, you can change JobThread in config.ini file to increase performance? In my case I changed the value from 1(default) to 2 (as I have a dual core processor) and gained ~10Fps and my grade moved up from B to A. You may wish to adjust the HDR setting from LOW(default) to HIGH to make the game look even better, with 10-15FPS penalty.

I myself am fine with LOW HDR as I can hardly notice any real difference between the two.