ITWorld- Gmail users who get frustrated trying to find the "unsubscribe" link that's often buried in small type at the bottom of promotional emails may instead start seeing it before they even open the message.
But you can still go back to the old layout if you prefer.
Overall, this looks like a decent UI update for people that use multiple Google services.
Spam runs rampant on Gmail, but you have options.
Looking forward to this tool, my email is getting out of control and those unsubsribe links are nearly always hidden.