I have installed it on two systems now.  The first one I allowed it to do a clean install and the second, just a normal install.
My games seems to have lost the jerkiness from the prior driver.  I was barely noticeable on the last one, but it does make a difference.
I noticed they have removed the Miracast sound driver from the install.  I wonder if it is related to Nvidia now having a wireless streaming device for TVs..