I believe I iwn one of the first - perhaps second - badge phones , I never experienced SIM problem.
I have had random shutdowns/reboots (causing the phone one time to not be able to start or enter recovery, only fastboot was possible - thus my worries for a flashable fastboot image)

Also, regarding issues. I have seen Jolla startong to pay more attention, lately regarding spare battery, and taking up the flashable image seriously.

That gives me hope

Lastly, I know I have raised stormy waters to create attention, while this can be taken as an attack, this is not MY intention.

I knew I purchased a beta device, I did that on purpose, i know and knew some of the limitatiions, yes, some is still a pain - for me - but this "love to hate" is getting too much attention and space.

If You dont like the smell on the Bakery, choose the one next door. But the bread might just not taste as good.