Cool product! You should integrate with the Stripe wherever possible out of the gate. I use Stripe but still accept the CC info directly through their widget. You could really polish that phase for me.

On a side note: It annoys me when I see a page with little info on the homepage, I click "Demo", and I'm presented with a form. Why not at least put your Video on your Demo pages and then use the form for a "Personalized Demo" aka. sales call.