I still need to test it under real conditions: after all, HeySummit is designed for creating webinars, and it takes a bit of time to set up. However, I still allow myself to make a comment right now because the price is going up in 5 days. I will modify my opinion later.
The software seems very, very powerful: webinar management, landing page, Stripe, CNAME, email (which can be customized), localization of texts, ... It has everything!
I was even very surprised to discover some features: pre-recorded webinars live, or at the client's pace (so... a hidden LMS ^^), and interconnection with many applications for video management (personally very happy to find Gumlet which I also recommend here).
I almost hesitated because of the old reviews that were very, very critical, but as Ben says, the entire system has been completely revamped. And I really like the new version!
I really encourage you to try it, you might miss out on something.
I chose the largest tier, for the no-branding and the 0.75% fees which I find very reasonable.
PS: I already had a little scare, and I contacted customer service, they accompanied me very well, and I received a response that same day.