After using Google Inbox on my phone and on my computer for the last week i have to say i dont understand how they think this is an iterate upgrade.
For starters, i have a eff ton of folders to sort and put my emails that i choose to keep in. I have filter rules to send stuff right to specific folders for things i dont really care to look at until after the fact and then mass delete.
the previous gmail iteration has more functionality, more ease of access for your settings, and im blown away by the fact that in Google Inbox when creating an email or replying they removed the quick link feature to add images via URL rather then adding via your computer.
usually im a big fan of googles updates, but in this respect, they tried to simplify things to the point where they even removed the delete button, to easily delete single or mass emails, with a single click.
not sure how everyone else feels about it, but im going back to using the old gmail, as even in the settings its harder to customize Google Inbox than gmails native browser experience.
For shame google, for shame.