Freelance Corporate videographer and motion graphics artist based in London.
I Highly recommend Mega (www.mega.co.nz).
From the perspective of a Videographer/Editor and Animator, here are the reasons why I highly recommend Mega as a transfer+storage+cloud site:
Your files are encrypted when stored and encrypted when uploaded/downloaded/sent.
Unlike other transfer and cloud based sites like WeTransfer (www.wetransfer.com), your information is not encrypted, thus open to prying eyes.
Mega uses a unique user generated code that users can download and store, this is called a master key in case a user forgets their password and gets locked out of an account.
As every storage account is 256 encrypted, only the viewer can view or access their data, this locks out Mega and any hackers that are after your information.
Privacy may not be an issue for some, but I am sure many would want to make sure that there information is safe during storage and when transfered.
Once a file is uoloaded, a unique link is generated that can be sent to someone as read-only, additional encryption is a key that is required to download the file which can be sent to the recieving person selerately.
There are no limits with size of file transfers, 50GB free with every new user, paid users get 1TB and more of storage facilities.
3. User interface (U.I).
Great platform that synced with alla your devices automatically. Sync your phone or tablet library to upload and back-up whenever you like.
Mega is the way to go.