Been using it for a few weeks. Very handy actually.
I've been using it to collaborate with a few other people in designing a website and brochures etc.. for work.. It is ideal for things like that where we can discuss realtime in relative privacy rather than banging out half a dozen emails everyday... It's highly convenient.
There are a few bugs of course though that is guaranteed. I only use it in Chrome however as it keeps crashing in Firefox for me.
