I am very happy with a deal like this, thanks AppSumo!

It seems the technology used does not come with a fallback. This means, people on tablets (like iOS) cannot join a broadcast. I believe people often use their second screen to watch a webinar. If they could support a fallback, i would definitely rate it 5 tacos!

I love all the features and how easy it is to setup! Now only hope the core functionality (streaming webinar content) will work on my customer devices well enough.

[Update] Just received word from Webinarninja on the device support: "An iOS and Android WN mobile app is in the works and should be released later this year"