My firm uses a combination of tools: Basecamp (2), Trello, and Slack (internally only). We use Trello to track user stories and sprint planning, and Basecamp fo

My firm uses a combination of tools: Basecamp (2), Trello, and Slack (internally only). We use Trello to track user stories and sprint planning, and Basecamp for outside-of-meeting communication, QA assignments to clients, client todo items, and file management (with Google Drive). We get annoyed at these limitations of Trello: cant assign checklist items, can't have discussion on checklist items. We get annoyed at these limitations of Basecamp: projects quickly turn into checklist hell, cannot connect ANYTHING to it's user story, poor calendaring. We've looked at JIRA, but it's just not client friendly, and we really don't want another tool in the mix.