My old company used a mix of Slack and RocketChat. Functionally, it's fine but I was never a big fan of the UI and how attachments were handled. Also, cross-cha

My old company used a mix of Slack and RocketChat. Functionally, it's fine but I was never a big fan of the UI and how attachments were handled. Also, cross-channel search was kinda bad. Mind you, this was well over a year ago so I'm sure things have improved.