dpreview has already complete the full review of new released Canon EOS 6D Mark II DSLR camera (B&H Photo/Amazon/Adorama/Amazon UK/Amazon DE) . It got 80% overall score at dpreview, without any gold or silver award. dpreview thinks 6D Mark II is a great backup camera for general use, but not good for people who needing the best image quality for landscape work, or sports and action photographers needing a more capable autofocus system.
From dpreview:
As it should be, the EOS 6D II is a better camera than its predecessor in almost every way. With plenty of resolution, respectable burst shooting speeds and pleasing Canon color, it’s a camera that’s capable of producing great images in a variety of situations. Despite this, it is simply overshadowed by competition that is made up of more capable cameras at similar or lower prices.
Unfortunately, unless you’re a die-hard Canon user with an investment in glass and you just need an affordable backup body, it’s difficult to look past all that competing cameras have to offer.