Of their products, Jira does surprisingly well for us. I dislike quite a few of their products but Jira just works for us, though some things seem to be more work than necessary to do. Some of that can be blamed on company processes though.

I actually like JIRA a lot, as long as you are not trying to customize it too much. A simple Kanban or Sprint board should be enough for 99 percent of teams, please do not try to make it more than what it should be.