Nope, I never fell in love with it. I use it because that is what the teams I'm in uses those some have switched to Glip). It works, it does the job, although will get hammered by Glip if the Slack team keeps up the hubris.
If Slack get on the defensive over Matt's article, you can't trust their future.
Many a company has been brought to its knees by its own hubris.