« on: February 16, 2015, 07:12:54 AM »
There is a fundamental difference between 'issues' that actually need fixing, and peoples over expectations. As you say, people upgrading from a 7D/70D, or earlier, almost universally find the 7D MkII a huge improvement.
Although the OP didn't say so in the first post, he later said he owned the 5D III and is considering the 7D II.
If he buys it he would be a good candidate for the disappointed category.
I bought 7D2 while owning 5D3,and I wasn't disappointed, using them side-by-side. I have found no sharpness problems with the 7D2, and its AF feels if anything better than 5D3's. The 7D2 failed though - its LCD went totally blurry with no obvious reason (I'm waiting for warranty repair/replacement). I haven't done any systematic comparison, however, and my expectations may have been lower than others' (I've no experience with 1-series bodies).