Call me paranoid but I have a big problem with storing anything important to me on a computer/server that I don't control. The company may have a stellar reputation and the best of intentions but it only takes one miscreant to destroy (or sell) a lot of data. I wouldn't put anything of mine on someone else's server that I hadn't encrypted ninety-five ways from Sunday. Actually not true, I wouldn't do it at all. Period!!
Trusting backup or important storage to any of the various clouds is a recipe for disaster
I agree very much with rgray on this matter.
I want my data under MY control.
Jack