The tabs feature is a godsend. It's definitely affecting my email behavior and making me a happier person. Instead of deleting individual marketing emails or sometimes trying to unsubscribe, I can now just ignore them completely!
But how much confidence do you have in the classification? I find myself polling all the tabs so I don't miss anything important. An example: my Amazon seller notifications go the the Promotions tab.
just drag the email into the primary tab and it will always put it there
Sure, and then I have to keep polling the Promotions tab to find out if there's any new stuff being classified in there.
I'm finding it faster to do the tab polling than it would to extract out the items I want to bin from one unified inbox. Definitely making my morning email cull faster.