WP All Import
It has been noted by many that the WP All Import plugin is the best WordPress import plugin on the market. If you need to do some heavy lifting of data between websites, then this plug-in will be very useful.
It can import (and export) most data including WooCommerce products, users and advanced custom fields. There’s also an add-on for cloaking links that are imported into a site, which is a very useful feature if you have an affiliate website.
You can find the user guide over on the developers website.