Every Azure product I've had to use has been lousy in every possible way. Azure DevOps at my last employer was a nightmare and nobody in the company liked it, not even the managers who decided on it.
I've been learning / using DevOps for the past four months and find it "quite good", and have previously used Jira, although not in great detail.
I'm making the effort to learn it in increasing detail as it's the company-wide chosen system. I'm interested to know what made / makes it a nightmare for anyone else.
