Generally BRTFS seems to be fine until it breaks, and then it's just painful and difficult to recover from (if at all possible). I'm sure it'll get more stable

Generally BRTFS seems to be fine until it breaks, and then it's just painful and difficult to recover from (if at all possible). I'm sure it'll get more stable in the future, but right now I wouldn't trust it with any production data the way I would trust ZFS. With ZFS on Linux being a thing now, I'd choose that over BRTFS every time.