Unbelievably well thought-out with nearly all of the many subtle but important features that almost all other task apps  even the popular ones  do not have in completeness (have this but not that). To name a few of these features: due time (not just date)  high customize-ability in task-repetition  customize-able widget  past due tasks are still visible but signified  auto-sorting of tasks  tags  sticky notifications  ability to check off tasks in widget  and future tasks appearing only within a specified time before due date. The only thing missing for now is web-access/cloud synchronization for use on multiple platforms.
October 07 2016