Photoshop Elements 12 since April and have had no problem with it whatsoever. When I made the purchase I went for the Elements 12 + Premiere Elements package, knowing that I was planning to create a video show for my children for a Christmas gift. When I tried to begin using Premiere Elements, the software would not open at all. I spent some time with online support via chat, and they had me uninstall Premiere Elements and run a clean up program. I've done that a couple of times now and Premiere Elements still doesn't work at all, and Elements 12 won't read my NEF files.
My OS is Windows 7 Professional.
I have two Nikon cameras. An old D70 and a new D5300.