I have been using GrapheneOS since the Pixel 6 came out and I have no complaints. I get regular updates, the OS is super stable and my phone is free of the pre-installed ad- and spyware.
I also remember the ridiculously easy and straight forward install, something that I wasn't expecting since I used to tinker with LineageOS and CyanogenMod way back. It almost feels like a stock rom.
The additional security features are great, though they come with the tiny inconvenience of not having access to system files (which is obviously by design).
Overall I couldn't be happier with it and I'll continue to use it for as long as I can.