For folks who would prefer not to add the demo content but still want the extra custom fields such as Show/Hide Page title and the ability to add a Product Category banner.

Go to Tools > Import > WordPress

Install the plugin if needed. Then import the following xml file at the bottom of this page.

Still having issues?

Go to 'Custom Fields' and delete everything there. Also, fully remove them from the trash/bin. Now, do the import again.