Thanks for all the responses. A common theme in the responses seems to be 1) design of the site/homepage, images, videos; 2) landing page copy / unclear proposition.

I'm not sure how critical 1) is and am hesitant to invest more resources into it having not gotten any traction so far.

I'm struggling with 2) and not quite sure how to better pitch the service and its benefits... needs a lot more thought on my part perhaps. I'm currently thinking if I can create some sort of flowchart graphics that shows at a glance what it does...