A month is nice to test drive it, and then if you like it then embrace the 99 dollar subscription.
If that subscription is a stumbling block, i.e., you want to buy the software, then the newer versions of Office is not for you.
Its either Microsoft's way or the highway at this point
If Mac:Office 2014 requires a 99/yr subscription, I will continue to use Mac:Office 2011 until I no longer can. At that point, I will use Pages, OpenOffice, or MS Word web version within OneDrive.