After recently reading about Dropbox’s shady behavior on the Mac (asking for your admin password, storing it, then using it enable Accessibility without your permission and constantly prompting you if you don’t), I decided to uninstall it and move anything important to iCloud Drive. Alas, my GIF library is still on Dropbox; maybe GIFwrapped will update with iCloud support at some point.
Anyway, I have to say that I’m quite annoyed with iCloud Drive’s subpar method of selecting where to save a document. When you tap Add to iCloud Drive, a picker pops up with all folders expanded. This greatly increases the time and frustration it takes to save a document to the right folder. I really would prefer to drill down through folders when saving. Please fix this, Apple.