Slack vs. Hipchat β Itβs not the design
I've heard plenty of complaints on the design - personally it never bothered me.
What I like about it is definitely the IRC-killing type features:
* Has the benefits of IRC (public channels) * So many integrations! That's where IRC really fails vs Slack * Smart notifications, including push notifications
Multiple organizations within one application helped me never turn on IRC, Telegram and Hipchat. I replaced 3 apps with one!