@chmod777
I love it, honestly. I use it for everything I used stock Pixel Android and with basically no issues: mobile banking, email, music, calls and texting, etc etc.
Pairs nicely with yubikeys over NFC or USB, battery life has been good, no trouble installing or updating apps from Play Store or F-Droid.
The biggest inconvenience so far was having to install a separate SMS app because native SMS is busted with no intent to fix but who cares, took me like 5 minutes to do that.
My next goal is to eventually get off of all Google services entirely, but that's a big project. I definitely don't ever want to go back to stock Android, Graphene is a strictly better upgrade as far as I'm concerned.