I like how GoBrunch attempts to replicate the look and feel of physical meetings, and I hope this aspect keeps improving. When the tech and bandwidth allows it, maybe one can automatically clearly hear those nearby, and in the lounge one can overhear bits and pieces of conversation as one "walks" about. There can be a registration desk setup in the lounge for attendees to signup and receive seminar materials & freebies, and interact with the event organizers. The lounge can have screens that show whats going on in the various rooms, and whether there's open seats.

I really like this product. I hope you give Zoom and Meet some real competition for a long time to come.