Nice work.

Though I didn't know the right sidebar was interactive until I read the comments here that said they hated it, then I went back to figure out why. Maybe a "Click me!" above the demo on the right, pointing down at the sidebar. Dunno.

Once I clicked around in it, I thought it was a great demo of your product no matter how one might feel about the product itself. Anyone that's used Slack before can immediately visualize if this would fit in with their Slack team or not instead of having to derive your product from marketese about increasing team synergy over real-time communications or something.