Don't pay through your nose for branded cloud based apps when you can use Free and Open Source like Sandstorm OS. Easy to use. Fast. And you can even host it on your own servers for internal use. Keep your data your own and safe from spooks. The entire business side of Sandstorm as a brand has run its course and with no further dev funding the owners of the technology decided to offer it as a full time community open source cloud app. It still has everything strong going for it as the web OS of the future.