"Presenting one feature at a time" is a quite useful thing because it allows you to talk about yourself regularly with a slightly different angle and it create news all the time.
First of all thanks for sharing, awesome story. We, at SlideShare, are currently running a contest "My Startup Story": http://blog.slideshare.net/2013/09/04/slideshare-contest-wha...
Your slide actually match what the contest ask for, so I invite you to join it. You just need to edit pour presentation and add the tag "MyStartupStory".
But the point I take from that story is that the surge in growth didn't happen because they were working directly in a shortcut. Rather, there was a lot of hard work going on, with multiple tactics being tested at the same time, and the quick results were a direct output of that approach.
There's no other way. I found a lot of useful nuggets in the article, nevertheless.