I tested the driver download and I was able to download the file with no issues, it took about 10 minutes to completely download.
When it comes to the driver, it is working although there has been some issues reported by other customer but I can confirm that Intel is working to fixes those issues.
If you will like to report any issues you can do it on the this forum -NEW- Intel® Iris™, Iris™ Pro, and HD Graphics Production Driver for Windows* 10 64-bit 126.96.36.199.4256.
I posted this at the time the driver download on Intel had problem. And I saw that a lot of people had trouble with this driver so i want to ask first before installing it.