Well, everything works except unlocking with an Apple Watch, even though I turned that on and the Mac thinks it supported. Of course, I may have missed some basic step?
I did notice that when I open Messages, it doesn't pull any that came in while it was turned off. Possibly that has something to do with that message? I don't know, I never turned on Messages for my 2008 Mac Pro - so I don't know what to expect. I assumed it would pull in any messages that it missed from the cloud like my iPad does if it has been turned off.
All in all, I'm very happy. This Hackintosh is actually keeping me in the Mac camp. Apple just got a few more hundred in iTunes that I'll use for Logic Pro X and other software. I probably would have just moved all music production to Windows if this didn't work and Apple would have lost me for good.
If Apple ever comes out with an Expandable box like the original Mac Pro, but with the latest technology - I might actually consider buying one - just to simplify my life. This has been quite challenging and there's still High Sierra to face shortly!!