Check out my blog post about CMS5 and that version of the sharepoint connector.
Probably in cms 6 the links still aren't permanent and that is not good for the editors. Then we hade serveral other problems but they might be fixed in later version I don't know.
I'm managing an intranet project for a customer that are looking into Sharepoint as a document management system. I trying to find more information about actual user cases based on Episerver and the Sharepint connector. Anyone that can give some feedback on this issue?