Well... so far I've found the eye detect not to be as accurate or consistent as with MFT and in single shot mode I've had more misfocused shots than with any of the other cameras I have. For example with Mrs WW walking / moving relatively slowly the Fuji's (I'm on my 2nd) can tend to miss whereas MFT tends to hit so that could be a camera/focus reaction time issue, it may not be reacting quickly enough and she's moved a bit by the time it does. Also with posed shots I've had missed focus shots, only slight misses maybe and I might have to look closely to see but they're still off a bit.
For me MFT does have a couple of strengths if going for the smaller bodies, I'm not interested in the bigger bodies. Smaller body wise and including the lenses they can still make a small package or with the larger lenses still a smaller package than the A7 and an equiv lens plus they have an electronic shutter and they're fast. I could convince myself that image quality wise the APS-C Fuji doesn't leave MFT far enough behind and doesn't match the old A7 but in some way it complements the A7 very well as it's smaller and it has an electronic shutter, but the handling and controls make the Fuji interesting and different.
I sometimes look at my old film shots and I have no intention of going back for multiple reasons.
I put my X100f in the inside pocket of a light summer jacket and it went in and stayed upright rather than falling forward as my MFT cameras tend to do, even the GM5, so the size and weight/weight distribution made that work and as it worked with my summer jacket it'll work with my winter coats too, so being able to put it in a coat pocket is quite a plus point.