Comment by nnadams

I used Btrfs for a few years but switched away a couple years ago. I also had one or two incidents with Btrfs where some weirdness happened, but I was able to recover everything in the end. Overall I liked the flexibility of Btrfs, but mostly I found it too slow.

I use ZFS on Arch Linux and overall have had no problems with it so far. There's more customization and methods to optimize performance. My one suggestion is to do a lot of research and testing with ZFS. There is a bit of a learning curve, but it's been worth the switch for me.