I am rockin the IMac Myself, I've reverted to old methods.
Firefox, and the Video DownloadHelper Add-On, then Just browse my clips on Xbox.com.
I like that setup because I can maintain Video Privacy and drop Elusive Skate Parts No one sees coming.
I saw no change in my Quality's Outcome Using OneDrive so I just stick to Xbox.com.
The Site looks cool though. Would be better if it was like Archiving. A Skate Archive in case Youtube ever went under would be fantastic.