What a nice surprise! It would be great if it finally gets integrated into OpenBSD tree. Corruption Detection and Crash Safety will be more than welcomed here.

I can't complain about FFS since it has been fully reliable for me. I have been directly powering off my obsd router for years and never had a problem... in the worst case if I use a very old and semi broken USB drive I have to access console and manually fsck -y some partitions, that's it.

I dig the GEFS acronym and concept too.