as far as DP-AF is concerned ... so far Canon has not been able to turn that feature into any really tangible benefiot for users. To the best of ma knowledge, both 70 as well as 7D II are still rather on the slow end of the bunch when it comes to autofocussing in Live View. Nowhere near where a Sony A6000 or Fuji XT-1 are.
I am asking myself, whether there is real value in DP-AF technology and Canon just not able and/or willing to unleash t, or whether its basically a "dud innovation".
I have both the X-T1 and 70D. The 70D is not slow comparatively. It is actually just about as fast as far as when they both lock on. The issue for me with the Fuji is that it hunts when you don't expect it to. Same with the A7r when I had it (for what it's worth). DPAF has been much more reliable in my experiences with both cameras in various lighting situations. Comparing DPAF to any mirrorless camera I've had, it is much more consistent and reliable while being competitively fast.