This is not a combination I would recommend based on the current preview. If the experience doesn’t get better before Office 2013 RTMs I won’t be upgrading. Every time I open a document I get a message that there is a problem with the document. Is there a problem? In reality no.
Trying to open a second Word document and your machine freezes for a while.
I have lost work because of the interaction between Word’s attempts to communicate with SkyDrive and the Skydrive app.
I’ll persevere a bit more but as I don’t have anything like the problems with Office 2010 I may just revert