Recently hipchat released a major UI rewrite, and now there's no way to turn off autocorrect. It's almost useless for developers discussing code, if every technical term you type gets replaced with the first non-technical word that is "close enough."
I never see the slack app in my top battery users; I saw the hipchat app in the top battery users all the time before I uninstalled the app. I don't leaving it running for work, but not at the expense of 10-15% of my battery.
It could be similar to people complaining that Reddit or Imgur is down or unstable, but that mostly happens to Americans. So Europeans get the benefit of an overbuilt infrastructure, because the companies try to scale to the load generated by Americans.
Trying out their hosted Jira solution recently felt quite a bit like a throwback to the 90s.
I'm not going to trust them again, sorry.
(We ended up using Youtrack instead. A lot faster, a lot cheaper, but less flexible.)
I don't find our self-hosted Jira slow or a throwback to the 90s. It also cost $10. But these things are opinions. :)