Nope.

Yes.
 
I've had some issues with installing it, first few times it kept failing and then on the 4th it finally seemed to work. I've had a few issues in games (Dota2, CS:Go) with the screen locking up briefly or it going to a black screen and then coming back. The driver also seems to hate Displayport yet again after the screen goes to sleep it won't come back unless you unplug + plug back in.

I've been using them since yesterday, no issues until now.

I've been testing them for quite some time and haven't seen any issues myself but there is a known issue with SLI and BF4 that NVIDIA is working on at present. 

rjohnson11
I've been testing them for quite some time and haven't seen any issues myself but there is a known issue with SLI and BF4 that NVIDIA is working on at present. 

Definitely some issues with SLI, even with 353.30, last night we swapped out the fermi's and installed a single 680, (2 had the same issue) all good now with both drivers. Left 353.62 on after a few tests and he's been running witcher3 all good high settings for about 4 hours , no problems at all
Im thinking a new driver will be released / or hotfix, for this issue very soon
 
 
Note: and all this on a 980a chipset board with an 1100t