This is my first attempt at using it.  I am logged on as myself on two computers that are side by side.  On one computer I edit a doc, save it back to sky"drive, and close the doc.  On the other computer, when I try to refresh the list of files, it just give the umbiquious "something has gone wrong".  Over and over again.  No matter what.  Other functions, seem to to work.  I just cannot look at any files that were added even though quite some time has elapsed.  Go figure.  It seems less informative and less user friendly than most MS products.  Go figure.  Maybe it does not think that the same person would ever be active on two devices at the same time.  Surely not.  Tonight dropbox (or even just USB sticks) seem to better the user friendliness and effectiveness of Skydrive for me.