Here's the real advantage of the 7D MkII over the 5D MkIII, getting more pixels on a focal-length limited shot. Here I use the 500mm along with the EF 2.0x TC-III, for an effective reach of around 1600mm:
First Moon Shot With New Canon 7D MkII by
dcstep, on Flickr
This is 3492x3492 pixels vs. 2328x2328 for the 5D3 with the same lens combination, cropped to approximately the same size.
There's no NR here either, at ISO 800, 0EV.
I love the new viewfinder layout, with a level and user-controlled selection of the things that you can see in the VF. The shutter is quiet and fast, even in normal mode. It gets super quiet in the quiet mode, but slower also.
Incredible camera. Canon should sell millions.