Matt - you’ll find it easy to map an FTP drive among various locations…then they are secure, hold files in a single location and allow users to access and store files of all sizes (when given proper authorization).
We use Dropbox quite a bit but often find its spotty in the Far East (not just China). FTP allows a direct connection which has never been a problem for us.
I use Dropbox and an FTP that I’ve mapped and prefer the FTP method since it seems to act more like a windows folder with no application running int he background, but how hard is it though to setup the FTP server (this one was already set up when i got it)? One thing I do like about Dropbox is that on files that it’s updating, it uploads so fast and I think it’s because it only updates the changed parts of the file and not the entire thing.
An IT person can handle it quickly, but I think you can do it yourself as well (if I remember correctly, Windows walks you through it) then once the FTP is mapped, it’s always active as long as the server is up.
In case anyone needs an update…as Mr-914 said, QQ file transfer is the fastest and most reliable for sending files. HOWEVER, QQ is known to be lax in their security and I personally know of many colleagues whose QQ accounts were hacked.
Nonetheless, QQ is your best bet as wetransfer, Google Drive, and many others have all been blocked. VPNs will also often be blocked, so if there’s anything that you need to send in a hurry, don’t let VPN be your only option.