The only data I have in the cloud is my phone contacts simply because it will make it faster to restore them if my phone is eaten by wild wolverines or something similar. All other data is on my home server which is backed up once a day to another server at another location. I have never and never will trust the cloud.
The Cloud is a good concept, but not for everything. If I were a medium sized business IT director, I'd use a combination of local, private cloud, and public cloud, depending on purposes. The only thing I'd ever upload to a public cloud would be encrypted backup data, and then only as a secondary backup. I'd never use it for primary storage or capacity. Yeah: "Let's put the fate of our company in the hand of our ISP and some other company!" That's just stupid.