Anyone have experience with Interprefy translation services?

Does anyone have any experience using Interprefy along with GoTo Webinar? 

I need to be able to generate French subtitles for English language webinars in real time. Our webinars often have multiple speakers, so the PowerPoint workaround will not work for us. I discovered Interprefy here: https://www.goto.com/integrations

If anyone out there has figured this out, I would greatly appreciate hearing what your solution was.

Thanks!