I have been able to import all the blog posts but not the comments. I have restarted import many times already and it seems that just the comments are not importing. The very first time I did the import, 26k of the 67k comments imported but I didn't have the chance to finish the import and stopped in the middle. I resumed the import last week and it loaded up to 29k comments. Now the rest will not import at all. It will sometimes go straight to "Load Authors" and completely bypass the comments.
I've tried to create an account on WordPress.com and import from as WordPress instead but nothing is loading and I'm not sure if it is because the XML file is too large.