One thing that the prior experience had was the ability to focus on the Presenter's Webcam, I don't see this same option in the new GoToMeeting. Only Who's Talking, but we sometimes use a different meeting user for the Presenter's webcam.
Thanks for your feedback around the new GoToMeeting interface!
We are currently working on several webcam improvements for upcoming releases, and this idea should be on the priority list. When we hear more about the upgrade we'll update the Community here: https://support.goto.com/meeting/help/whats-new-g2m010012