I have taken the new Olympus OM-D E-M5 Mark 5 to do news reports for the local radio station's YouTube channel.
Most of the time the camera has behaved well. One occasion there was some moire, but minor. My bigger complaint with this camera is that the camera locks all the controls once you push the record button. The control wheels do nothing. The viewfinder does not change to the LCD when I take my eye away from it. If you are using the rear swivel LCD, one item (aperture, shutter, exposure compensation, ISO, audio volume) at a time can be changed on the touch screen. You can refocus auto focus lenses by pushing the viewfinder button. This is not very intuitive and rather awkward. (I prefer my GH4 as all I have the do to refocus is half way push the big record button.) Since I have the battery grip I can monitor audio but that must be removed to replace a battery in the camera.
On the plus side, the camera is small and light weight. The viewfinder and LCD are very sharp with a hight number of pixels with a very good refresh rate. The image stabilizer is amazing. The auto white balance is great outside and good inside. It is nice knowing that the camera is weather sealed here in the Pacific Northwest.
Overall a great stills camera and a good video camera.
Here two reports shot with the camera and edited in FCPX.