It works well.
I've added a pkg to the createOSXInstallPKG the reenables the FileVault to Desktop autologin, DisableFDEAutoLogin -bool NO
I would like to figure out a way to close Self Service prior to the 1st reboot. Otherwise the user will go through the update and when all is done the Self Service app is opened and it appears as though the 10.11 upgrade is still available to their computer. It takes 5 to 30 minutes for Self Service to recognize that the update should not be in scope.