I've used Pivotal before and would 100% go with that if I had the choice. If you need to do a bunch of crazy, waterfall like, interdependencies and formal plan

I've used Pivotal before and would 100% go with that if I had the choice. If you need to do a bunch of crazy, waterfall like, interdependencies and formal planning, Jira is probably still the way to go. If you need a reasonably usable ticketing system, Pivotal is good enough.