My understanding is that only a restore from a Mac back-up gives you a true copy, i.e. with app passwords and data still intact, while both restore from iCloud phone-phone leads to a download of the app and you have to enter passwords all over again. Also which restore keeps all photos on the iphone?
Can somebody confirm?
Have used Restore from my Air many times. It gives you an exact copy. Waiting to do it today again, I hope!