I recently had all of my Intel upgrade parts a little less than 2 months now. I got the GTX 1080 as a gift so I sold both my R9 280x cards. Both of those combined couldn't compete with the GTX 1080.
This PC can handle anything in it's path. Just played Battlefield 4 on my 4K TV and I was getting roughly 80 FPS on average.
Overall, I'm very happy I was able to set up this amazing rig. When it comes to video editing and gaming, it works flawlessly. IF I were to change anything, probably a Bigger, Better design case with some chroma lights inside of it.
My recent build with my R9 280x's is here: http://pcpartpicker.com/b/vLzMnQ