Interesting that comments everywhere spend a lot of time bitching about EVF and lack of second SD slot, which baffles me. These C models are not aimed at 'professionals' or as backup bodies - the handling/haptics are completely different to the bigger bodies. They're aimed at travellers, street photographers, amateurs like me who have almost never used EVF by choice (I hate the damn things) and have never bothered with a second slot even when available to me (I've spent years with the R bodies, and A7iii/A7iv). There have been a surprising number of commenters wanting everything the bigger bodies have - where do you think they're going to put them?!!
The A7c has been such a breath of fresh air to me - small, light, fun to use, great AF. I love it. I'm very happy not paying for an expensive EVF, second SD slot, joystick etc. The AF is so good and flexible the joystick really isn't necessary, very occasionally I'll use touch focus. I do miss things like Cx custom buttons, camset capability, tilting screen and dual curtain shutter. Some of those things will be addressed in the A7Cii, others not, but they're good compromises for the money and size. These cameras are not supposed to be used for weddings etc, that's just not their target audience.
I'll buy the A7Cii as soon as it's available. This will have the same outstanding AF as the A7Rv but with an even faster readout - will be a significant step up from the A7iv in a lot of ways (will be interesting to see if it has the same 4k60 crop). Sony aren't morons - the A7c was a surprising success and the A7cii will likely be even more successful.
I'd love the A7Cr but doubt I'll be able to afford it.