I'm not sure about the "maintenance" part, however, my experience was: - a few years ago, one system would suddently not boot (due to btrfs); this happened twi

I'm not sure about the "maintenance" part, however, my experience was: - a few years ago, one system would suddently not boot (due to btrfs); this happened twice - nowadays, on one system, background scrub doesn't start This is anecdata of course, but I've never had a good impression overall. I don't see any reason to use btrfs rather than ZFS, considering that Ubuntu and derivatives are starting to add builtin support.