Cool.
By the way, a label or tooltip somewhere on the Dropbox uploader that lets users know that the upload root will be Dropbox/Apps/Photo Mechanic Uploader might be a good thing. It might could go on the connections page, since it might be the kind of thing you only need to tell somebody once.
Once I figured it out and made a Google Keep note with the share link to a folder I made at Dropbox/Apps/Photo Mechanic Uploader/share, I was good to go. But it took me a while to find where my uploads were going.