Australian newspaper 1st April Bill said, page-8

"..the jury is out on whether Slack actually makes a difference to the problem it's trying to solve. I have to admit that I use Slack, but I also use Google Hangouts, Skype, Twitter, Facebook Messenger and, of course, email. Slack hasn't removed any of those channels in any way. Indeed, watching the general pattern across the half-dozen organizations that I'm involved with who use Slack, there seems to be a general early flurry of excitement and activity, followed by a typical return to email, the status quo of messaging."

http://www.computerworld.com/articl...ited-love-affair-that-is-better-off-dead.html