Hi, nice plugin and great idea. Kudos!
I observed that it picks up the backed shipping method name instead of what is displayed in Front end.
For example if we rename Cash on Delivery to be displayed as COD, this plugin shows Cash on Delivery (not what is displayed in front end.)
Also if possible will be nice to have an option of cart calculator open by default. http://www.creationinternetsite.com/e-commerce/how-to-keep-the-calculate-shipping-block-of-woocommerce-cart-always-open/