If you own vintage bikes, you just got another one. The biggest difference is the EFI and electronic ignition, neither of which are you going to really need to do anything to. The rest of it is pretty much the same as your other vintage bikes, assuming some of them are English. You'll probably realize after you really check out the new Enfield how close it is to the other ones.
You'll find your question list will shorten up a lot as soon as your familiar with the new one.
Welcome to the group.
Bare