Account Recovery
This is one of the best benefits to users because of a user in anyway misplaces his/her account password, he can recover it back via security identification and account recovery using the ID card they use in verifying the account

In as much as security is very important I love this feature account recovery because no matter how care one can be accident are can't been totally avoided and when such incident occurs, it makes one glad to know. There's still hope to recover all lost account.