The new Trello integration is 🔥
But... we have dozens of boards, often times with similarly-named cards, so the "link to existing card" functionality is kind of uselsess as-is. Too difficult to figure out what the right card is or guess what we may have called it.
It'd be great to be able to filter your search by board, or even better choose a board and see a quick list of cards in that board that we can just click on to select.