Thanks for putting a thoughtful review into the wild, I feel like this camera has not been as explored in depth online as many others have.
I've got to disagree on handling and battery life...I used it on an extremely grueling shoot last Friday after a few days of half assed testing and thing was a joy. Got heavy in the hand by midnight but other than that...I popped an adhesive z-finder frame on it and just shot...I guess I love the DSLR form factor, so it depends on what your tastes are. Battery seemed really healthy, and with only two I was able to rotate, never going under half full all day long.
I was also amazed at the stills I could pull from the 4K stream, especially at 100 shutter which I cheated up to now and then without affecting my love for the video image. Still too expensive, not something I can see justifying for either corporate business in Panama or spending the money for cinema applications that could be spent on talent, food, transportation, etc, but I do wish one of these cameras would just fall in my lap, it'd be the only thing I'd shoot on for the next year or so anyways.