I'm writing this on a Fairphone 5 right now, the hardware is great, the only slight issue is the USB C Port is a little looser than I would like, not enough for a problem, alas.
The main issue currently is the software, there's a few well known bugs that cause annoyances that the Fairphone forum widely know about, one of which requires you to hold the power button down and force restart the phone. I am confident that the developers and customer support are aware of these bugs and are working to fix them.
Overall I'm happy with it, £700 isn't too bad for a phone that I'm going to try to keep for the whole 8 to 10 years that have promised security patches. Sure its doesn't have flagship specs, but no day to day tasks for me require that power.
I mean I would if the cable kept becoming unplugged, its more it wiggles more than I'd like