For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
WeTransfer - WeTransfer is a free service to send big or small files from A to B.
Dropbox - Online Sync and File Sharing
Google Drive - Access and sync your files anywhere
Hightail - The professional way to send & share files and folders with anyone
Mega - Secure File Storage and collaboration
Box - Box offers secure content management and collaboration for individuals, teams and businesses, enabling secure file sharing and access to your files online.