Moving To Google Hangouts

I saw that Brad Feld has been making the shift from Skype to Google Hangouts. I've been meaning to do that myself. Skype is the only piece of desktop software I have on my various machines other than a slew of web browsers.

But my decision last year to leave the world of files and apps and get to the cloud has been incredibly liberating. I want to finish it off. And so Google Hangouts here I come.

For those of you who have been using Hangouts, is there anyting I need to know? Does it work for multi-party videos? Does it work in all browsers? Does it work all around the world? Any reason why I should not do this?