You consume the item and then it will let you choose one aetheryte as a sort of a second 'home point' that you can teleport to for free. If you do not use security token it wont be free and you cannot change it. This was in the interview someone translated. Where is this 50 tickets stuff coming from? Why are people so quick to label "rewards sucks" followed by "what is it actually?" -.-
Anyway, I skimmed through and didn't see anyone actually mention the explanation I read from the interview someone translated here recently. I'll edit soon for link and quotes....
I was wrong it wasn't in the interview. http://na.finalfantasyxiv.com/lodest...4ceda18a4657cf
To further strengthen account security when playing FINAL FANTASY XIV: A Realm Reborn, players are encouraged to log in using a security token or software token.
These security devices generate one-time passwords, which remain effective for only a fixed period of time and become invalid once the user logs in, offering protection against spyware such as key logging programs. Using a one-time password in combination with your Square Enix ID and password will offer greatly strengthened security for your account.
Learn more about how to register your one-time password.
(http://www.square-enix.com/na/account/otp/)
In-Game Bonus for One-Time Password Users
As of patch 2.2, when logged into the game with a one-time password, you will have the option to designate one aetheryte of your choice as a free destination. Teleporting to your free destination will incur no gil fee. Moreover, you may change your free destination as many times as desired.
* The free destination is only valid for Square Enix accounts with a registered one-time password.
* In the event your one-time password has been deactivated, teleporting to your destination will incur a gil fee. Furthermore, your free location cannot be changed while your one-time password is deactivated.
As a quick and easy way to ensure a safe and secure gaming experience, we highly recommend all users take advantage of the one-time password feature.