Mailbox for Android: Is this really it?

I love seeing well-designed apps come to Android. So when I read today that Mailbox was making the jump from iOS, I went and downloaded it to give it a try. I was especially looking forward to using this app because sites like The Verge went bananas for it when it first came out a couple years ago.

Now I know I have the benefit if Google being given two years to react, but even back when it was first released, why was there so much hoopla over this email app? It's got a neat hook in the short/long left/right swipe, but it doesn't really change anything, when The Verge seems to be billing the app as a game-changer...