It does exactly what it needs to: Just checks mail. Clicking the button will take you to gmail (or inbox). The only issue I find with this is that it doesn't reuse existing gmail tabs.

I really like this add on, perfect for what I need. My only complaint that there is no option to remove the notifications (set the counter to zero new mail) when I click on the add on to check my mail. It is really annoying that I have to click on check mail again or wait a couple of minutes for the new mail notifications to disappear after I read my e-mails. Otherwise it works great.

Please add the option for a 2nd account displayed on the tool bar. I used to use gmail manager but that's no longer supported what you've created is almost exactly what i want I just need the option to monitor my personal and business email