Yesterday I took my new camera, the Canon 5D Mark IV, out a to a couple of places to see how it would perform. I went for a very cold hike at the Gorge in the afternoon and in the evening to a opening at 22 High Street Gallery. It does seem to have greater dynamic range than my 6D and more low-light capability. I still need some more experience with it before I make final a judgement on the image quality. Its definitely not the instantly noticeable jump that I saw when I went from the 7D to the 6D - that was pretty big.
The main thing I've been enjoying so far is the usability of the camera. The ergonomics and button placement as well as the amazing auto-focus systems. I say systems because not only is it incredible through the view finder but also in live view mode or when shooting videos. Also - the camera is built like a tank - it almost makes the 6D feel like the my old Rebels(maybe that is a slight exaggeration).
Anyways - as much as dSLR's have just become tools to me this one is exciting to use. I can't wait to try it out at an event.