I looked around, got a general idea what it was about, but what I really wanted was a demo site. Not a video, which I don't think I bothered to watch, but a demo site I can play with.
I am definitely not signing up for $300+ without trying it first. Your product seems like it could support a free trial, why not offer one? 30 days, one client, whatever.
Another thing that struck me as I watched your demo video just now: does form based lead generation like this even convert better than a simple, "hey why don't you flick me an email and we'll set a time to chat about your project"?
Is that something you should test before building a product around it? Myself, I would prefer a slightly more personal touch, but if the stats proved me wrong then maybe I would consider a system like this.
Just my thoughts