(a) I like the idea of a checkmark that says what font is currently in use. Many times I'll go back to an old design to create a new one or add a new element and I dont remember what font I used. Now I write it in Photoshop. I just make a layer for text with my notes and hide it. Font, size, I save colors in the notes and so on.
(b) The "storage" of TTFs for other designs is interesting, though I almost never use an uploaded font for other watches/series/collections. If I have to upload a font, it's usually because I need that special look that isn't available in the Creator fonts. I've never had a problem with this. I have a library of TTFs (with the sample sheet). Many of the fonts I've ever uploaded came from dafont.com so I just store the name and the sample sheet.
So I don't necessarily care about storing my previously used TTF files in the Facer cloud, but I like the checkmark idea.