I agree - all they've done is change how the labels are displayed. The 1:many relationship (which is the power of labels, and where Outlook fails) hasn't gone a

I agree - all they've done is change how the labels are displayed. The 1:many relationship (which is the power of labels, and where Outlook fails) hasn't gone anywhere. Some people don't get labels, and use them like Outlook folders. They were doing this before the labels were hierarchical, and they'll keep doing it. But for those of us who get (and love) labels, this just makes it easier to keep them under control. My main use-case for this: I don't care about emails related to income tax for 51 out of 52 weeks. I label the messages appropriately, archive them, and search by label when I'm doing my taxes. I can now take that label - as well as the others like it - and hide them all under one "Infrequent" label and clean up my "More Labels" view.