Free for students if the Institution has the appropriate licensees. Not all Uni's may have purchased the required Office versions, and remember is tied to the account.
When people leave Uni the administrators submit the relevant email addresses to Microsoft and access to Office 365 will stop.

Be careful of getting this even if the link works if you are not a student. There.may be some post purchase verification. See the below response from Microsoft after someone moaned bits stopped working

Hello there, The University confirms verification that you are enrolled so you can use Office 365 University. With Office 365, PCs with limited access to software, you can use Office Web Apps included with your subscription. With Office Web Apps, you can open, edit and present your Office files on PCs that do not have Office installed. For free tips and tutorials on using and finding applications on Office 365, please visit: https://support.office.com/ . We hope this was helpful to you

most uni students (like myself) have free access to office 365. this could be useful for uni students though

pretty sure it is free to students anyway, there is a link in freebies http://www.hotukdeals.com/freebies/microsoft-office-365-free-for-students-2418951

It is free for students (my wife is a student). But there is nothing stopping anyone loading buying this for their mum/dad/auntie/uncle/gran etc.

for some reason it didn't work on my wife's uni address.

Got this and its good. Then you're locked into the MS cross-platform ecosystem and will not want to leave, because.... its good, it works :smile:

Seems to be fro students otc only though?

Worth it for 1tb storage alone

Free for students if the Institution has the appropriate licensees. Not all Uni's may have purchased the required Office versions, and remember is tied to the account.
When people leave Uni the administrators submit the relevant email addresses to Microsoft and access to Office 365 will stop.