For some reason I still only instinctively trust Dropbox to reliably sync my files. I'm always worried I'm going to lose something if I put it into my Google Drive or iCloud folder, though I'm sure by this point it is probably just as good/reliable.
My concerns have less to do with individual files being manually added to a Google Drive or iCloud folder and more to do with how well it handles starting entire new project folders w/ hundreds (or thousands) of files that are constantly being updated.
My concerns have less to do with individual files being manually added to a Google Drive or iCloud folder and more to do with how well it handles starting entire new project folders w/ hundreds (or thousands) of files that are constantly being updated.