I think for someone with a Canon DSLR (crop or FF) who hasn't jumped on the "mirrorless" bandwagon this is ok. Hell, slow live-view AF is something a lot of DSLR user are used too.
The IQ of the 18mp Canon sensor is not really any better than the 16mp Pany sensors. Here's one taken with the 22mm f2 last night...the sunset wasn't what I hoped for so had to be somewhat "creative".