One of my personal preferences for task managers is the ability to edit tasks directly in the list/grid view, without a separate edit/detail modal. Wrike and youtrack are the big ones I've used that allow this. What I want out of a task tracker is just slightly more than a spreadsheet - most of the time I just want one row per task, editable in the grid. And then once in a while I want to click and get the detail view, where I can have a series of comments.