It's "perpetually half-finished". Convoluted admin cli tooling, bad track record with reliability and loss of data, lots of stories on the internet. It perhaps got better, but RAID5/RAID6 for metadata (standard use of disks) still not oficially recommended and thus standard RAID5/RAID6 is not reliable. Also, look at some FS benchmarks - BTRFS is still much slower than EXT/XFS, and slower than ZFS.
About the only class of scenarios to use BTRFS instead of ZFS is if you want the features, do not need RAID5/6, require support by Linux distributor/kernel developers or for some other (hard to think of) reason you can't use ZFS.
I do use BTRFS on a single disk where I don't touch it with cli tools, and there it's fine.
About the only class of scenarios to use BTRFS instead of ZFS is if you want the features, do not need RAID5/6, require support by Linux distributor/kernel developers or for some other (hard to think of) reason you can't use ZFS.
I do use BTRFS on a single disk where I don't touch it with cli tools, and there it's fine.