Decent search is the only thing that makes it better than all the others (Hipchat, Flowdock et al). I actually liked Flowdock bit more, but it got hard to find

Decent search is the only thing that makes it better than all the others (Hipchat, Flowdock et al). I actually liked Flowdock bit more, but it got hard to find stuff from a few months back, so switched to Slack. The weird situation where you're satisfied and disappointed at the same time...