I have been running with a fixed (not automatic) and optimized channel on my access point (channel 1) for a couple of weeks now with some improved results. Not nearly as good as the non-Intel branded card (0% drops with different brand than Intel, with Intel 0-3% drops).
I have been running on Wireless_15.6.1_e64 last couple of weeks. Today I updated to Wireless_15.8.0_e64 (BTW, Intel driver update utility does not recognize that 15.8.0 is the newest driver which is why I had to find it manually).
Looks like there are some more choices on driver tab with this newer version if somebody wants to mess around with the settings.
OT?:
I would also like to mention that when WiDi connection drop out without properly disconnect first it won't reconnect without stopping the service "IntelCpHeciSvc.exe" (which is why I have made the following script: taskkill /f /im IntelCpHeciSvc.exe
Sometimes it's not enough to do this (mostly when I had 2-3 disconnects or more without properly disconnect from WiDi suftware) and I have to reboot my computer. When I type ipconfig /all I get several virtual connections which seems to be the problem? (should only be one?). Anyways, that's a minor problem as soon as the driver problem is getting fixed.
Please keep looking further into this Intel. I had hopes to buy a Asus based WiDi supported motherboard for my next stationary computer, but I will not invest lots of money on a smaller based motherboard just to get disappointed because of bad drivers/software. I also hope for the next generation will have some regular sized mthboards with WiDi support.