I've gotten the Office 16 Beta via my Office 365 subscription. I installed it on both my Yoga 2 Pro and new-to-me Surface Pro 3. While it works quite well for dealing with my outlook mail account, on the Surface Pro 3 it will not work with my iCloud stuff. Just hangs wanting to be logged into iCloud mail. OTOH, on the Yoga it works fine with both outlook mail and icloud. Both machines started with Office 13. Haven't figured out why this is, but I did notice that the installation screens for Office 16 are different than what they were when I first got it on the Yoga 2 Pro.