I had a couple of 7D bodies, got rid of both of them. The AF was always just a little off, both bodies acted the same. I've talked to many other photographers who had the same problem, just off enough that the subject was just a little soft. I had tried the micro-adjust, but was all over the map, sometimes a little front focused, sometimes a little back. It was ok with the slower lenses, or at least close enough to be reasonable, but never good with a fast lens.
Finally sold the last one a couple months ago, and got a 70D. The 70D misses on occasion too, but when it misses it's more obvious. However, it hits the focus better much more often than either of my 7Ds ever did. Neither is as good as my 5D3 or 6D, though. I'd like to see what they do with the AF on the 7DII, if they can get it as good as the 5D3. The last croppped sensor camera I've had with decent AF was the 40D.
