In my last jobs Jira was used, and despised by all except product managers. It just becomes a mess. In my startup (now 20 people), we use Trello. Outsiders look at us funny. I respond that its the same company after all...

The best task management solution is the one you just moved to as it doesn't have years of junk in it.

I hate Jira just like any other sane person does. But really, Trello? I found it worse than Jira. /smh