The Woo Checkout Order Review Element is designed to have a place on your custom Checkout page. This Element presents the items in the Cart in a table, much as the Woo Cart Table Element does, only here it is in the context of a final order review before completing the Checkout.
There are a large number of desgin options for styling the Header, Table and Footer Cells however you like. You can place the Element anywhere on you Checkout page, but in the natural flow of a Checkout page, this Element would be placed right before the Woo Checkout Payment Element.