Having spent the last two days on this forum, google, and starting support cases with wp.com. I've come for some help.
I have successfully export all content and media from our wordpress.com site. I can see all of our content in the file, including over 150 posts.
When I try to import into wordpress.org site using both wordpress importer and wordpress extended importer, it only imports 4 posts and a couple pieces of media.
I've tried multiple times with different browsers and even on different hosts with the same results.
My understanding is that the built in export function is the only option for wordpress.com.