I played with the 5r in my backyard this afternoon, and shot one of my favorite subjects.
I like this camera. It's a nice upgrade to the C3. The function button and added control wheel make the camera easy to use. I also like the fact that entering the shoot mode is just a button push away, almost as easy as the 6. About the only thing that I don't like is that the AMB is no longer one of the shoot modes; it's now a scene mode and it takes longer to select it unless it was the last scene used.