I've been daily driving it for months with no blockers. You can tell Linux uses the battery less efficiently than MacOS though so that's good to know.
Still some tiny issues with waking from sleep lid closed, but I'm expecting to get that fixed myself with some prompting this week. The people working on Linux on Mac are really impressive (and have access to unlimited tokens), so I expect all issues to be fixed very soon.
Being able combine agents, linux software and Apple hardware is so much fun.
So, 97% stable then? (Downvote me but it's true.)
It's been my primary dev machine for 2 years