Love the program - indeed I’ve just paid real money for it (following a podcast pick from Leo Laporte).
I find navigation in the folder tree a bit counter intuitive. All the other similar programs I’ve used (and I’ve used a lot!) collapse a node on left arrow or shift-left arrow and then collapse the parent node if you press it again. it’s usually the best way to get to the root without having branches open everywhere. Am I missing any obvious keyboard shortcuts?
Oh - and can you apply a tag to multiple items without having to resort to drag and drop?
(as you can tell I only reach for the mouse when I have to)