My readers know I like the Canon EOS-7D Mk II camera a lot, especially for wildlife photography when the action is a bit further away because I am not a big fan of extenders and my Canon EOS-1D X has 'only' 18MP to work with when it comes time to crop.
However, I am not without reservation with this camera. I pointed out the problem is the AF system is not up to par at times, especially when it come to AF @ f/8. Read my review of the camera from a few months ago and get the whole story. Currently, I am on a photo shoot in Costa Rica and the AF on the EOS-7D Mk II can be slow and sometimes even cannot focus under less than ideal lighting conditions in the rain and cloud forests.
Word is Canon is aware of the situation and planning to address the AF system with a new firmware update soon. This will be most welcomed by me and many others.