After being in the first batch to receive my Gemini, I am going back to my old iPhone 5s as my primary phone.
My reasons are, using out of the box Android
1. Bluetooth controls do not work if the gemini is closed - this was the main one
2. In the dark, because of the nerve damage of my fingers from cancer treatments, I have difficulty locating the correct key, particularly the Fn key to turn off the display
3. Gemini randomly totally reboots during a phone call, with no cause that I have been able to determine (holding Gemini to ear, Gemini in speaker mode sitting on a table) - only 6 times so far...
4. Bluetooth disabled after reboot, regardless of settings prior.
If point one is fixed, I may re-try moving to the Gemini as my primary phone.
Point 2 could be solved, at least for me, with keyboard backlight, or as a minimum, identified keys being backlit, preferably by a preferences app
Points 3 and 4 minor irritants that I could put up with if I could overcome 1 and 2.
Other than this, I managed to get all the functionality I wanted migrated from the iPhone with only a little effort. (calendar/contact sync to NextCloud being the prime one). It's a shame but I will continue to support the Gemini, it being a great idea from an old Psion Revo user.