I've used both in a very non-critical way (think basic dev workloads on linux, no DBs or any high performance applications). I found the same as the comment ab

I've used both in a very non-critical way (think basic dev workloads on linux, no DBs or any high performance applications). I found the same as the comment above, btrfs was a dream to set up and a nightmare when something went wrong, which was several times a year it seemed. ZFS on the other hand, I had to write scripts to handle my snapshots and snapshot expirations but the filesystem itself has been rock solid. I haven't put ZFS through it's paces. However with btrfs I had so many issues on a dead simple workload it just didn't seem stable to me. This sucks and I wish I could contribute because I loved their goals and thought they were designing everything right, but stability wins the long game, as it were.