So sad that it's come to this. Nvidia releasing these just for 3dmark. Personally, in games, I noticed no difference in performance.
On the upside, it seems Nvidia is listening somewhat by giving us the refresh rate fix built in now (too bad not for OGL).
Basically, I had one game that just wouldn't run with them (my Freedom Force issue), and the rest ran like they had before the update. Hopefully once they go through WHQL they'll be fixed up and whatnot. Though, with all the problems these are having, I'm betting that they'll be stuck repairing these half-assed drivers for quite some time.