Mine was just enabled (and I use my own domain with Google Apps for Business, so that's a first. Usually I'm the last one to receive beta upgrades). Here's my

Mine was just enabled (and I use my own domain with Google Apps for Business, so that's a first. Usually I'm the last one to receive beta upgrades). Here's my first impressions: 1. [Primary] tab was very accurate, right off the bat. It detected all personal and important emails properly. And all social updates went to, well, [Social]. 2. [Promotions/Updates]: these two are a bit all over the place. Honestly I don't even understand exactly what they meant by "Promotions", but seems it's "anything that is long, but not personal, and certainly not a simple automatic trigger/trigger". All mixed up. Promos went to Updates, and vice-versa. 3. It also failed to detect several emails from discussion lists and blog posts, that went incorrectly to [Promotions] or [Updates], when it should have gone to [Forums] 4. For now there's no ability to customize the tabs. At all. WYSIWYG. Not even the label. The "+" is just a shortcut to enable/disable one of the 4 additional tabs (besides Primary, that is always visible). Overall, this is clearly a beta version, so it'll be interesting to see how they improve the functionality over the next releases. I'm sure it'll be a nice addition to most types of users (particularly those that have thousands of emails archived - which is not my case). I just wished I could customize the labels right away; it's something so small and ridiculously simple to implement, yet it would allow users to make it personally relevant to them. But considering the OP, this should be coming soon. ps: I can't understand why so many negative comments about an optional feature. At least for now - and likely the next 6-12 months - you'll have the option to simply not use it. And if (when?) they force it down your throat, well, just vote with your money... Oh, wait. Did I just say money?