Amazing work both teams. Video conf is still such a painful thing on the web despite everyone's repeated attempts to make it work. Anything that makes it easier and simpler for users is a huge win.
I've attempted to use them various times and every single time they've failed to be of use to me. The whole gtalk + video being combined with google+ hangouts has not worked well at all for me so far.
I can't use Google+ hangouts at work. A P2P video conferencing tool becomes far more interesting. Especially now that Skype is effectively fully logged.