Don't forget antitrust, which is absolutely essential.
Before forming such a comprehensive opinion on it, wouldn't it make sense to, y'know, actually take a look at it?
I have all of my Skydrive content saved as D:\Skydrive (on three different machines). If I want to save something to Skydrive, I put it in this directory and it gets synced to the cloud, and thus to the other machines, via a background process (the "app"). I also back up this directory to an external drive just in case - I can do this because it's just a regular directory tree. Why is this such a difficult concept to understand?