ReFS was only ever made the default on new installs of Windows Server 2012. It never actually made it to production builds of Windows 8 or above so it's actually only installed on a fraction of the systems that are out there. That's not really a sufficient sampling size to say that this deployment went along much better. The APFS update was a much, much larger endeavor and, based only on public response, was nearly seamless. This is the first major issue I've heard about with regard to APFS.
1. i had a filevault related corruption issue, the disk was eating itself up thinking it was encrypting... don't have the apple discussion link at hand.
2. time machine hidden snapshot, "disk full" issues. it's a major pita for me that is not possible to turn off local snapshots.
