I'm using btrfs for a year on my laptop and there are no problems. I did some research before as I considered ZFS too but it seems most btrfs criticism is from old versions that did have bugs or using configurations that have known flaws (raid5/6, see [0]).
ZFS, as much as I like it, will unfortunately never be part of the kernel and users will constantly be put into this kind of situations: https://www.phoronix.com/scan.php?page=news_item&px=ZFS-On-L...
[0]: https://btrfs.wiki.kernel.org/index.php/Gotchas