I had a chance to do some testing today with Lance from DT and I was very impressed by the whole experience. Since Doug is asking specifically about the experience of the interface and tools. I can remark a few aspects. It's a great workflow addition to have the focus mask in live view, the responsiveness of the whole screen interaction is greatly improved, seeing a histogram and exposure evaluation (through the internal C1 processor) during LV is a fantastic addition. The menu layout in combi with the side swipes to expand the menu options is clear and intuitive - just like the XF camera. A lot of improvements, continuations on old proven concepts. I'm not even talking about the file quality and how this breaths life into lenses. Workflow is so important in both a professional shoot situation, art and pleasure photography and this new IQ architecture makes this all another clear step better. I had a big grin on my face working with this kind of gear.