Come on Microsoft...Stick to What You're Good at....What was that again? Oh yeah, not getting along with the rest of the IT sector....
I'd prefer Slack (even if it goes down, and what some say is a steep learning curve, c'mon man! Aren't you in Tech?), Hipchat, or a messenger pigeon over any MS based messaging tool. Worth a read though, Microsoft is great at making crap that sells, straight cash homey.