The 12 for me has a very strong appeal as a smartphone / tablet replacement.
I've had smartphones and/or tablets for approaching 20 years now, and they've always struck me as very frustrating compromises. Mostly Android, but some use of iOS as well, and yes, the OS (in both cases) is fundamental to the limitations.
I've also used MacOS heavily (I'm on it now), and I don't like it, relative to Linux.
The Framework Laptop 12 is smaller than my most recent tablet (a 13.3" e-ink), though somewhat more massive. It frees myself from a plethora of Android limitations, crapware, inconsistencies, and the non-repairability of the hardware itself (presently an issue). It gives a real-computer experience, with some compromises for size, but I'm pretty sure that's a net win.
Paired with a limited-feature phone and possibly a few dedicated devices for specific uses (camera, audio recorder), I'm good.
And the 12 should provide an easy decade of service.