I'm also very happy with the news, changelogs and documentation from the devs. I kind of fell in love with GrapheneOS just by reading its documentation. It's just so good and it's obvious that attention is being given to every detail and that providing accurate useful information is valued above all else.
I also like that GrapheneOS is much stricter about security/privacy than other similar projects, while still being pretty much as easy to use as any Android distro.