Google+ Hangouts on Air team is looking for user feedback with few simple questions. It is just a small form with 6 easy to answer questions.
Feedback form is available here
According to the form, The information collected here is to inform the Hangouts On Air (HOA) product and engineering teams. Your answers will only be used internally at Google and will not be published anywhere.
This form is created and hosted by Google+ team on Google Docs, so all the feedback will go directly to the team.