In principle, yes it is. In practice... it's a bit of a blender where you put your songs and then get mixed results. Why would it delete everything overnight? Because iCloud. I'm not being sarcastic. That's what it does.
I've had massive issues again with iTunes Match, and Apple Music. Since the update all the album names I change have no reverted back to their original. Also I deleted a few albums which all of sudden have returned. All downloaded music was deleted.
Edit, I'm managed to fix all the issues. Signed out of iCloud on all devices, manually forced iTunes to sync on my MacBook, then signed back into all my devices again.