I've recently been experimenting with tethering my 1DX MKiii to PM via EOS Utility on a Windows 10 laptop. I've it working with both wifi or wired using USB cables between camera and laptop. If you set EOS Utility to remote shooting, and select a folder to save the photos to on the laptop in preferences, then use this folder as the source folder for PM Live Ingest to pick up the images and transfer them to a secondary working folder you can then monitor the images as they appear on the PM image preview screen almost instantly.
The only difficulty I'm having is when I take a sequence of photos, I always like to get to the last image and work back for editing. Fn Home arrow will bring me back to the last image, but that requires 2 hands on the laptop. I'd much prefer a single button shortcut as I'm editing as the action continues. Other than that it works seamlessly and is surprisingly quick.