This is simply a great platform where one can promote oneself all throughout the day - 24x7 - no interruptions as the webinars can be pre-recorded.
The 5-star rating is for a very simple reason - this product (or service) is going to help you generate the lead on minimal efforts - record once and replay as many times as your want to communicate with your clients or sphere, too.
And not tried this but this is what they say about their new Jam Session -
Deliver professional quality broadcasts that can split screen with up to 6 HD video feeds