I once used it to manage projects before Notion came along.
I like that you can assign yourself to the cards you are working on now and filter to see only assigned cards by pressing Q key. I also marked cards I want to work on next with
You can attach link to card by simply selecting card and pressing
⌘ + V.
You can also add a link as a new card itself by simply
⌘ + Ving in the new card area. This will also fetch the thumbnail and add that to the card and create an appropriate title.
In the date picker you can just type the number of the month to pick it. Or you can do
13/3 to make a due date for this year on March 13th.