My former company adopted Zulip because we were in the cybersecurity space and needed an on-prem solution. When I first saw it I thought "oh god this is going t

My former company adopted Zulip because we were in the cybersecurity space and needed an on-prem solution. When I first saw it I thought "oh god this is going to be awful" - very ugly UI compared to Slack and others. But after getting used to it, I found that the UX is excellent. For anyone searching around, don't be put off by the lack of "polish" - Zulip has a really good fundamental design.