Hello Atlassians,
We switched from Workboard to Trello earlier this year and so far so good. The new Team Table View (which I recommend) addressed one of the shortcomings of Trello vs Workboard, namely being able to edit due date and status from a view of all your cards across numerous boards without going into individual boards.
Only one thing remains to be fixed - meetings. Workboard allowed you to create meetings, which were different from tasks, and those meetings would be pushed through automatically to your google calendar. Trello at the moment only lets you sink all your cards to google calendar which would be a mess. Trello developers - the solution is relatively easy. We just need a meeting power up. If you add that power up to a card it automatically synchs the due date with your google calendar (or other calendar you use).