I sent this as feedback and it was suggested I post my comments here.
I just installed Dropbox for S Mode and at first glance it's a really frustrating tool to use. Trying to move files to other folders. Can't just drag and drop a file to a folder unless it is right next to the folder (can't drag and scroll) and then only one file at a time. Selecting multiple files to move by clicking the Move icon takes you back to the root folder so you have to navigate all the way down every time. (And none of the icons tell you what they do until you click on them. No hover help at all.) And the icons of photos are too tiny to see, no way to make them bigger that I can see. Can't seem to open more than one window where you could drag files between windows and folders. I was hoping it would create files and folders on my Win 10 system so I could use Windows Explorer to move things around.