The video is simply superb. Even at low resolutions the images are clear, and even at the maximum resolution there is very little frame-loss. The Zeiss lenses really do justice to their reputation here, with crisp and deep colors. There is a wide enough field to move around in comfortably, even without the auto-follow, and even without the lighting compensation I got a nice, clear image with little graininess even in just the glow of my monitor.
The auto-follow is a bit jerky, but it finds and follows perfectly. So long as you aren't moving too much, the movement never gets jerky enough to be irritating, but if you are an animated talker this feature might make people a bit dizzy.
The lighting compensation works well, but causes lag with any real movement. This seems unavoidable, as the camera is trying to fill in the blanks it can't really see, so there is some loss of time while the image gets processed. This is a hardware limitation, and while understandable, is one of those things I hope to move beyond.