I got a used 7DII from KEH yesterday and it was not as described. Autofocus was off and the back button focus would stick. I tried a couple lenses on it and just wasn't happy. I was planning on using it today and was so disappointed I looked to see if Best Buy had one. So I ended up buying a new 7DII and took it to the river today to try it out on eagles. The fps is so much faster than what I've been shooting the past couple years with a K1 and 5dsr. Tracking was a little harder with the narrow field of view, can't imagine how hard it will be with the TC on. The weather was cloudy so lighting was bad except for maybe a half hour. Will need to get some sun to get a good feel for the camera before I give any more thoughts on it.