I still prefer DropBox since Copy doesn't seem as fast. The CLI stinks, too.
While Copy technically offers everything Dropbox does and more, Dropbox Just Works and Copy Just Doesn't.
I recently shared some Purim videos from scjool, on both Dropbox and Copy. Copy took much longer to upload/download, and the files were shared with me by the guy who took the videos. So I moved them from his folder to a subfolder of last years stuff, easy.
I used Mover to import them into Copy, and added the one 3GB video to that folder. (It wasn't in the Dropbox share because of the size.) Or tried to, then discovered Copy has no utility for moving files in the web interface. I had to download my Copy account and move it from the filesystem. Copy took several hours downloading and uploading the file, since aparently they couldn't figure out I moved it -- they seemed to treat it as a deleted and new file. On that note, this is factoring out the several hours it took for Copy to delete the local copy of the other 2.5 GB of videos I copied from my Dropbox synced folder. I had hoped to speed up the preliminary downloading.
I am pretty sure Dropbox is much much much faster at matching files to save time. Then again, they know what they're doing.
Look, I'm sure once the files are
there and everything is set up it doesn't really matter who's servers are storing them... long-term dumb storage would seem to be Copy's niche...
Copy has no polish. I signed up when they first came out and took a look, but their interface was retarded, so I'm happy that at least this time around they have
finally optimized their website so it doesn't take five minutes to load the damn login page...