I downloaded inSSIDer, I optimized my connection and 46 is my best link score (if I recall correctly my last score was in the 30's)
It might be to early to tell, but it looks better. Still more unstable then the driver that came pre-installed on W8, and much more unstable then my previous non-Intel WiFi card. My girlfriend has the exact same computer as me, but with a different card. To troubleshoot the issue I switched WiFi cards, and I had less drops with the non-Intel branded card.
I never had any problems with Intel in my past 20 years, it's a big brand and lots of people sees the brand as a quality sign (including me). I really do hope that they will fix this driver issue.
To me it looks like the newer driver (or maybe software) makes the card more fragile when it comes to signals. Hence the better stability when using a different line on my router, but still no sign of instability with a different branded WiFi card.