I find sub-tasks to be extremely useful, it lets me keep my story cards at the right level for other stakeholders but also lets me add in the detail I need. Wit

I find sub-tasks to be extremely useful, it lets me keep my story cards at the right level for other stakeholders but also lets me add in the detail I need. Without them I end up using some other task list app for the details. The top bar has 2 lines of text and takes up 20% of the screen. Cards take up a set amount of space so half by board is white space instead of being filled with cards. I don't understand the Calendar or why I would want to see it all the time, if I wanted to see the past state of the board it would be fairly rare (if ever). Then just the general styling, AgileZen is very polished and clean and flow looks like an app I would have designed. :) (that's why I pay a designer)