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I really like using 1 level deep sub-tasks for granular task assignments/actions that need to be completed. However, when updating the dates/duration of the subtasks, the parent dates do not update. I'm used to Microsoft Project where it will auto-update because it doesn't usually make sense for a parent task to end prior to the sub-tasks completing. Right now I have to manually update the parent task dates whenever I notice sub-tasks are shifted out past the parent task due date. I tried not entering any dates for the parent and just using sub-task dates, but then the parent "roll up" task doesn't show up on the timeline view. It would be nice if Wrike could have a check box at the parent task level next to the date picker that says "rollup from subtasks" or something like that. That way you get the option to populate the parent task dates with the total duration from the sub-tasks.