[nisa]

Even it it doesn't break your filesystem anymore: Performance is subpar in all aspects except sequential read/write even compared to ZFS. high snapshot count degrades performance and lot's of gotchas you discover after using it for a while. RAID1 is not RAID1 - it's oddness of the pid decides which disk to read from... scrub impacts io massivly. Tooling and documentation is not exactly great... lot's of quirky hacks to make up for design errors IMHO.

If it works for you, fine. Also it appears to get better - I won't touch it anymore if I can avoid it.