We've had great success with Gather. Organic conversations happen a _lot_ more often than when we only used Slack. We still keep Slack for async communication.

We have a decent spread of people across the introvert-extrovert band and we don't set concrete expectations on camera on or spending time in common areas - but both are encouraged.

I'm surprised how well it works. We've been using it for almost 2 years now, I think.

Our company is about 15 people.