Time Machine still doesn't work and is HFS+ only. There are indeed other issues as reported around the web.Į/7/is-apfs-fully-supported-yet/ĪPFS has improved for spinning disks, remember when you couldn't even use APFS for hdds or Fusion Drives. I think that I disagree with the last paragraph, but then I think that the pluses of APFS is not that great on spinning drives, so I do not recommend APFS on hdds at this time.
blog/2/analysis-apf.m_source=xlr8yourmac Recently found this article by Bombich Carbon Copy Cloner makers on performance hits when using APFS on spinning hard drives.