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.
The FileCloud server is self-hosted and gives me the ability to store and share files, sync across different devices and back-up all documents and photos so that I don't have to worry about security.
Dropbox - Online Sync and File Sharing
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Google Drive - Access and sync your files anywhere
WebDrive - WebDrive File Access Client allows you to open and edit server-based files without the additional step of downloading the file.
Mega - Secure File Storage and collaboration
Air Explorer - Air Explorer is a software to manage all your multiple cloud drives (like Dropbox, Onedrive, Google Drive, Mega, Mediafire, Box, Hidrive, Yandex, Baidu,...) as well as WebDav and FTP connections.